2 * (C) Copyright 2004-2007 Shawn Betts
3 * (C) Copyright 2007-2012 John J. Foerch
4 * (C) Copyright 2007-2008 Jeremy Maitin-Shepard
6 * Use, modification, and distribution are subject to the terms specified in the
10 var define_buffer_local_hook = local_hook_definer("window");
12 function define_current_buffer_hook (hook_name, existing_hook) {
13 define_buffer_local_hook(hook_name);
14 add_hook(existing_hook, function (buffer) {
15 if (!buffer.window.buffers || buffer != buffer.window.buffers.current)
17 var hook = conkeror[hook_name];
18 hook.run.apply(hook, Array.prototype.slice.call(arguments));
22 define_buffer_local_hook("buffer_title_change_hook");
23 define_buffer_local_hook("buffer_description_change_hook");
24 define_buffer_local_hook("buffer_icon_change_hook");
25 define_buffer_local_hook("select_buffer_hook");
26 define_buffer_local_hook("create_buffer_early_hook");
27 define_buffer_local_hook("create_buffer_late_hook");
28 define_buffer_local_hook("create_buffer_hook");
29 define_buffer_local_hook("kill_buffer_hook");
30 define_buffer_local_hook("move_buffer_hook");
31 define_buffer_local_hook("buffer_scroll_hook");
32 define_buffer_local_hook("buffer_dom_content_loaded_hook");
33 define_buffer_local_hook("buffer_loaded_hook");
34 define_buffer_local_hook("set_input_mode_hook");
35 define_buffer_local_hook("zoom_hook");
37 define_current_buffer_hook("current_buffer_title_change_hook", "buffer_title_change_hook");
38 define_current_buffer_hook("current_buffer_description_change_hook", "buffer_description_change_hook");
39 define_current_buffer_hook("current_buffer_icon_change_hook", "buffer_icon_change_hook");
40 define_current_buffer_hook("current_buffer_scroll_hook", "buffer_scroll_hook");
41 define_current_buffer_hook("current_buffer_dom_content_loaded_hook", "buffer_dom_content_loaded_hook");
42 define_current_buffer_hook("current_buffer_zoom_hook", "zoom_hook");
45 function buffer_position_before (container, b, i) {
49 function buffer_position_after (container, b, i) {
53 function buffer_position_end (container, b, i) {
54 return container.count;
57 function buffer_position_end_by_type (container, b, i) {
58 // after last buffer of same type
59 var count = container.count;
62 container.get_buffer(p).constructor != b.constructor)
72 define_variable("new_buffer_position", buffer_position_end,
73 "Used to compute the position in the buffer-list at which "+
74 "to insert new buffers which do not have an opener. These "+
75 "include buffers created by typing an url or webjump, or "+
76 "buffers created via command-line remoting. The value "+
77 "should be a number giving the index or a function of three "+
78 "arguments that returns the index at which to insert the "+
79 "new buffer. The first argument is the buffer_container "+
80 "into which the new buffer is being inserted. The second "+
81 "argument is the buffer to be inserted. The third argument "+
82 "is the position of the currently selected buffer. Several "+
83 "such functions are provided, including, buffer_position_before, "+
84 "buffer_position_after, buffer_position_end, and "+
85 "buffer_position_end_by_type.");
87 define_variable("new_buffer_with_opener_position", buffer_position_after,
88 "Used to compute the position in the buffer-list at which "+
89 "to insert new buffers which have an opener in the same "+
90 "window. These include buffers created by following a link "+
91 "or frame, and contextual help buffers. The allowed values "+
92 "are the same as those for `new_buffer_position', except that "+
93 "the second argument passed to the function is the index of "+
94 "the opener instead of the index of the current buffer (often "+
95 "one and the same).");
97 define_variable("bury_buffer_position", null,
98 "Used to compute the position in the buffer-list to move a "+
99 "buried buffer to. A value of null prevents bury-buffer "+
100 "from moving the buffer at all. Other allowed values are "+
101 "the same as those for `new_buffer_position', except that "+
102 "the second argument passed to the function is the index of "+
103 "the new buffer that will be selected after burying the "+
106 define_variable("allow_browser_window_close", true,
107 "If this is set to true, if a content buffer page calls " +
108 "window.close() from JavaScript and is not prevented by the " +
109 "normal Mozilla mechanism that restricts pages from closing " +
110 "a window that was not opened by a script, the buffer will be " +
111 "killed, deleting the window as well if it is the only buffer.");
113 define_keywords("$opener", "$position");
114 function buffer_creator (type) {
115 var args = forward_keywords(arguments);
116 return function (window) {
117 return new type(window, args);
121 function buffer_modality (buffer) {
122 buffer.keymaps.push(default_global_keymap);
125 function buffer (window) {
126 this.constructor_begin();
127 keywords(arguments, $position = this.default_position);
128 this.opener = arguments.$opener;
129 this.window = window;
130 var element = create_XUL(window, "vbox");
131 element.setAttribute("flex", "1");
132 var browser = create_XUL(window, "browser");
133 browser.setAttribute("type", "content");
134 browser.setAttribute("flex", "1");
135 browser.setAttribute("autocompletepopup", "popup_autocomplete");
136 element.appendChild(browser);
137 this.window.buffers.container.appendChild(element);
138 this.window.buffers.insert(this, arguments.$position, this.opener);
139 this.window.buffers.buffer_history.push(this);
140 this.element = element;
141 this.browser = element.firstChild;
142 this.element.conkeror_buffer_object = this;
144 this.local = { __proto__: conkeror };
146 this.enabled_modes = [];
147 this.default_browser_object_classes = {};
151 this.browser.addEventListener("scroll", function (event) {
152 buffer_scroll_hook.run(buffer);
153 }, true /* capture */);
155 this.browser.addEventListener("DOMContentLoaded", function (event) {
156 buffer_dom_content_loaded_hook.run(buffer);
157 }, true /* capture */);
159 this.window.setTimeout(function () { create_buffer_late_hook.run(buffer); }, 0);
161 this.browser.addEventListener("load", function (event) {
162 if (event.target == buffer.document)
163 buffer_loaded_hook.run(buffer);
164 }, true /* capture */);
166 this.browser.addEventListener("DOMWindowClose", function (event) {
167 /* This call to preventDefault is very important; without
168 * it, somehow Mozilla does something bad and as a result
169 * the window loses focus, causing keyboard commands to
171 event.preventDefault();
173 if (allow_browser_window_close)
174 kill_buffer(buffer, true);
177 this.browser.addEventListener("focus", function (event) {
178 if (buffer.focusblocker &&
179 event.target instanceof Ci.nsIDOMHTMLElement &&
180 buffer.focusblocker(buffer, event))
184 buffer.set_input_mode();
187 this.browser.addEventListener("blur", function (event) {
188 buffer.set_input_mode();
191 this.modalities = [buffer_modality];
193 // When create_buffer_early_hook runs, basic buffer properties
194 // will be available, but not the properties subclasses.
195 create_buffer_early_hook.run(this);
197 this.constructor_end();
201 toString: function () "#<buffer>",
203 // default_position is the default value for the $position keyword to
204 // the buffer constructor. This property can be set on the prototype
205 // of a subclass in order to override new_buffer_position and
206 // new_buffer_with_opener_position for specific types of buffers.
207 default_position: null,
209 /* Saved focus state */
210 saved_focused_frame: null,
211 saved_focused_element: null,
213 // get title () [must be defined by subclasses]
214 // get name () [must be defined by subclasses]
215 dead: false, /* This is set when the buffer is killed */
220 // The property focusblocker is available for an external module to
221 // put a function on which takes a buffer as its argument and returns
222 // true to block a focus event, or false to let normal processing
223 // occur. Having this one property explicitly handled by the buffer
224 // class allows for otherwise modular focus-blockers.
227 // icon is a string url of an icon to use for this buffer. Setting it
228 // causes buffer_icon_change_hook to be run.
230 get icon () this._icon,
232 if (this._icon != x) {
234 buffer_icon_change_hook.run(this);
240 set_default_message: function (str) {
241 this.default_message = str;
242 if (this == this.window.buffers.current)
243 this.window.minibuffer.set_default_message(str);
246 constructors_running: 0,
248 constructor_begin: function () {
249 this.constructors_running++;
252 constructor_end: function () {
253 if (--this.constructors_running == 0) {
254 create_buffer_hook.run(this);
255 this.set_input_mode();
260 destroy: function () {
264 this.saved_focused_frame = null;
265 this.saved_focused_element = null;
266 // prevent modalities from accessing dead browser
267 this.modalities = [];
270 set_input_mode: function () {
271 if (this != this.window.buffers.current)
274 this.modalities.map(function (m) m(this), this);
275 set_input_mode_hook.run(this);
278 override_keymaps: function (keymaps) {
280 this.keymaps = keymaps;
281 this.set_input_mode = function () {
282 set_input_mode_hook.run(this);
285 delete this.set_input_mode;
286 this.set_input_mode();
289 /* Browser accessors */
290 get top_frame () { return this.browser.contentWindow; },
291 get document () { return this.browser.contentDocument; },
292 get web_navigation () { return this.browser.webNavigation; },
293 get doc_shell () { return this.browser.docShell; },
294 get markup_document_viewer () { return this.browser.markupDocumentViewer; },
295 get current_uri () { return this.browser.currentURI; },
297 is_child_element: function (element) {
298 return (element && this.is_child_frame(element.ownerDocument.defaultView));
301 is_child_frame: function (frame) {
302 return (frame && frame.top == this.top_frame);
305 // This method is like focused_frame, except that if no content
306 // frame actually has focus, this returns null.
307 get focused_frame_or_null () {
308 var frame = this.window.document.commandDispatcher.focusedWindow;
309 if (this.is_child_frame(frame))
314 get focused_frame () {
315 var frame = this.window.document.commandDispatcher.focusedWindow;
316 if (this.is_child_frame(frame))
318 return this.top_frame;
321 get focused_element () {
322 var element = this.window.document.commandDispatcher.focusedElement;
323 if (this.is_child_element(element))
328 get focused_selection_controller () {
329 return this.focused_frame
330 .QueryInterface(Ci.nsIInterfaceRequestor)
331 .getInterface(Ci.nsIWebNavigation)
332 .QueryInterface(Ci.nsIInterfaceRequestor)
333 .getInterface(Ci.nsISelectionDisplay)
334 .QueryInterface(Ci.nsISelectionController);
337 do_command: function (command) {
338 function attempt_command (element, command) {
340 if (element.controllers
341 && (controller = element.controllers.getControllerForCommand(command)) != null
342 && controller.isCommandEnabled(command))
344 controller.doCommand(command);
350 var element = this.focused_element;
351 if (element && attempt_command(element, command))
353 var win = this.focused_frame;
355 if (attempt_command(win, command))
357 if (!win.parent || win == win.parent)
364 function with_current_buffer (buffer, callback) {
365 return callback(new interactive_context(buffer));
368 function check_buffer (obj, type) {
369 if (!(obj instanceof type))
370 throw interactive_error("Buffer has invalid type.");
372 throw interactive_error("Buffer has already been killed.");
376 function caret_enabled (buffer) {
377 return buffer.browser.getAttribute('showcaret');
380 function clear_selection (buffer) {
381 let sel_ctrl = buffer.focused_selection_controller;
383 let sel = sel_ctrl.getSelection(sel_ctrl.SELECTION_NORMAL);
384 if (caret_enabled(buffer)) {
386 sel.collapseToStart();
388 sel.removeAllRanges();
394 function buffer_container (window, create_initial_buffer) {
395 this.window = window;
396 this.container = window.document.getElementById("buffer-container");
397 this.buffer_list = [];
398 this.buffer_history = [];
399 window.buffers = this;
400 create_initial_buffer(window);
402 buffer_container.prototype = {
403 constructor: buffer_container,
404 toString: function () "#<buffer_container>",
406 insert: function (buffer, position, opener) {
407 var i = this.index_of(opener);
408 if (position == null) {
410 position = new_buffer_position;
412 position = new_buffer_with_opener_position;
415 i = this.selected_index || 0;
417 if (position instanceof Function)
418 var p = position(this, buffer, i);
421 this.buffer_list.splice(p, 0, buffer);
423 this.buffer_list.splice(0, 0, buffer);
424 dumpln("Error inserting buffer, inserted at 0.");
430 return this.container.selectedPanel.conkeror_buffer_object;
433 set current (buffer) {
434 var old_value = this.current;
435 if (old_value == buffer)
438 this.buffer_history.splice(this.buffer_history.indexOf(buffer), 1);
439 this.buffer_history.unshift(buffer);
441 this._switch_away_from(this.current);
442 this._switch_to(buffer);
445 select_buffer_hook.run(buffer);
448 _switch_away_from: function (old_value) {
450 old_value.saved_focused_frame = old_value.focused_frame;
451 old_value.saved_focused_element = old_value.focused_element;
453 if ('isActive' in old_value.browser.docShell)
454 old_value.browser.docShell.isActive = false;
455 old_value.browser.setAttribute("type", "content");
458 _switch_to: function (buffer) {
459 // Select new buffer in the XUL deck
460 this.container.selectedPanel = buffer.element;
462 buffer.browser.setAttribute("type", "content-primary");
463 if ('isActive' in buffer.browser.docShell)
464 buffer.browser.docShell.isActive = true;
467 * This next focus call seems to be needed to avoid focus
468 * somehow getting lost (and the keypress handler therefore
469 * not getting called at all) when killing buffers.
473 // Restore focus state
474 buffer.browser.focus();
475 if (buffer.saved_focused_element)
476 set_focus_no_scroll(this.window, buffer.saved_focused_element);
477 else if (buffer.saved_focused_frame)
478 set_focus_no_scroll(this.window, buffer.saved_focused_frame);
480 buffer.saved_focused_element = null;
481 buffer.saved_focused_frame = null;
483 buffer.set_input_mode();
485 this.window.minibuffer.set_default_message(buffer.default_message);
489 return this.buffer_list.length;
492 get_buffer: function (index) {
493 if (index >= 0 && index < this.count)
494 return this.buffer_list[index]
498 get selected_index () {
499 var nodes = this.buffer_list;
500 var count = nodes.length;
501 for (var i = 0; i < count; ++i)
502 if (nodes[i] == this.container.selectedPanel.conkeror_buffer_object)
507 index_of: function (b) {
508 var nodes = this.buffer_list;
509 var count = nodes.length;
510 for (var i = 0; i < count; ++i)
516 get unique_name_list () {
517 var existing_names = {};
519 this.for_each(function(b) {
520 var base_name = b.name;
521 var name = base_name;
523 while (existing_names[name]) {
525 name = base_name + "<" + index + ">";
527 existing_names[name] = true;
528 bufs.push([name, b]);
533 kill_buffer: function (b) {
536 var count = this.count;
539 var new_buffer = this.buffer_history[0];
541 if (b == new_buffer) {
542 new_buffer = this.buffer_history[1];
545 this._switch_away_from(this.current);
546 // The removeChild call below may trigger events in progress
547 // listeners. This call to `destroy' gives buffer subclasses a
548 // chance to remove such listeners, so that they cannot try to
549 // perform UI actions based upon a xul:browser that no longer
551 var element = b.element;
553 this.container.removeChild(element);
554 this.buffer_list.splice(this.buffer_list.indexOf(b), 1);
555 this.buffer_history.splice(this.buffer_history.indexOf(b), 1);
556 this._switch_to(new_buffer);
558 select_buffer_hook.run(new_buffer);
559 this.buffer_history.splice(this.buffer_history.indexOf(new_buffer), 1);
560 this.buffer_history.unshift(new_buffer);
562 kill_buffer_hook.run(b);
566 bury_buffer: function (b) {
567 var new_buffer = this.buffer_history[0];
569 new_buffer = this.buffer_history[1];
571 throw interactive_error("No other buffer");
572 if (bury_buffer_position != null) {
573 this.buffer_list.splice(this.buffer_list.indexOf(b), 1);
574 this.insert(b, bury_buffer_position, new_buffer);
576 this.buffer_history.splice(this.buffer_history.indexOf(b), 1);
577 this.buffer_history.push(b);
578 this.current = new_buffer;
579 if (bury_buffer_position != null)
580 move_buffer_hook.run(b);
584 unbury_buffer: function (b) {
585 var c = this.current;
586 if (bury_buffer_position != null) {
587 this.buffer_list.splice(this.buffer_list.indexOf(b), 1);
588 this.buffer_list.splice(this.buffer_list.indexOf(c), 0, b);
590 this.buffer_history.splice(this.buffer_history.indexOf(b), 1);
591 this.buffer_history.unshift(b);
593 if (bury_buffer_position != null)
594 move_buffer_hook.run(b);
598 for_each: function (f) {
599 var count = this.count;
600 for (var i = 0; i < count; ++i)
601 f(this.get_buffer(i));
605 function buffer_initialize_window_early (window) {
607 * Use content_buffer by default to handle an unusual case where
608 * browser.chromeURI is used perhaps. In general this default
609 * should not be needed.
611 var create_initial_buffer =
612 window.args.initial_buffer_creator || buffer_creator(content_buffer);
613 new buffer_container(window, create_initial_buffer);
616 add_hook("window_initialize_early_hook", buffer_initialize_window_early);
620 * initialize_first_buffer_type is a workaround for a XULRunner bug that
621 * first appeared in version 2.0, manifested as missing scrollbars in the
622 * first buffer of any window. It only affects content-primary browsers,
623 * and the workaround is to initialize the browser as type "content" then
624 * change it to content-primary after a delay.
626 function initialize_first_buffer_type (window) {
627 window.buffers.current.browser.setAttribute("type", "content-primary");
630 add_hook("window_initialize_late_hook", initialize_first_buffer_type);
633 define_buffer_local_hook("buffer_kill_before_hook", RUN_HOOK_UNTIL_FAILURE);
634 function buffer_before_window_close (window) {
635 var bs = window.buffers;
636 var count = bs.count;
637 for (let i = 0; i < count; ++i) {
638 if (!buffer_kill_before_hook.run(bs.get_buffer(i)))
643 add_hook("window_before_close_hook", buffer_before_window_close);
645 function buffer_window_close_handler (window) {
646 var bs = window.buffers;
647 var count = bs.count;
648 for (let i = 0; i < count; ++i) {
649 let b = bs.get_buffer(i);
653 add_hook("window_close_hook", buffer_window_close_handler);
655 /* open/follow targets */
656 const OPEN_CURRENT_BUFFER = 0; // only valid for open if the current
657 // buffer is a content_buffer.
658 const OPEN_NEW_BUFFER = 1;
659 const OPEN_NEW_BUFFER_BACKGROUND = 2;
660 const OPEN_NEW_WINDOW = 3;
662 const FOLLOW_DEFAULT = 4; // for open, implies OPEN_CURRENT_BUFFER
663 const FOLLOW_CURRENT_FRAME = 5; // for open, implies OPEN_CURRENT_BUFFER
665 var TARGET_PROMPTS = [" in current buffer",
667 " in new buffer (background)",
670 " in current frame"];
672 var TARGET_NAMES = ["current buffer",
674 "new buffer (background)",
680 function create_buffer (window, creator, target) {
682 case OPEN_NEW_BUFFER:
683 window.buffers.current = creator(window, null);
685 case OPEN_NEW_BUFFER_BACKGROUND:
686 creator(window, null);
688 case OPEN_NEW_WINDOW:
689 make_window(creator);
692 throw new Error("invalid target");
696 let (queued_buffer_creators = null) {
697 function create_buffer_in_current_window (creator, target, focus_existing) {
698 function process_queued_buffer_creators (window) {
699 for (var i = 0; i < queued_buffer_creators.length; ++i) {
700 var x = queued_buffer_creators[i];
701 create_buffer(window, x[0], x[1]);
703 queued_buffer_creators = null;
706 if (target == OPEN_NEW_WINDOW)
707 throw new Error("invalid target");
708 var window = get_recent_conkeror_window();
712 create_buffer(window, creator, target);
713 } else if (queued_buffer_creators != null) {
714 queued_buffer_creators.push([creator,target]);
716 queued_buffer_creators = [];
717 window = make_window(creator);
718 add_hook.call(window, "window_initialize_late_hook", process_queued_buffer_creators);
727 define_variable("read_buffer_show_icons", false,
728 "Boolean which says whether read_buffer should show buffer "+
729 "icons in the completions list.\nNote, setting this variable "+
730 "alone does not cause favicons or other kinds of icons to be "+
731 "fetched. For that, load the `favicon' (or similar other) "+
734 minibuffer_auto_complete_preferences["buffer"] = true;
735 define_keywords("$buffers", "$default");
736 minibuffer.prototype.read_buffer = function () {
737 var window = this.window;
738 keywords(arguments, $prompt = "Buffer:",
739 $buffers = function (visitor) window.buffers.for_each(visitor),
740 $default = window.buffers.current,
741 $history = "buffer");
742 var completer = all_word_completer(
743 $completions = arguments.$buffers,
744 $get_string = function (x) x.description,
745 $get_description = function (x) x.title,
746 $get_icon = (read_buffer_show_icons ?
747 function (x) x.icon : null));
748 var result = yield this.read(
749 $keymap = read_buffer_keymap,
750 $prompt = arguments.$prompt,
751 $history = arguments.$history,
752 $completer = completer,
753 $enable_icons = read_buffer_show_icons,
754 $match_required = true,
755 $auto_complete = "buffer",
756 $auto_complete_initial = true,
757 $auto_complete_delay = 0,
758 $default_completion = arguments.$default);
759 yield co_return(result);
763 function buffer_move_forward (window, count) {
764 var buffers = window.buffers;
765 var index = buffers.selected_index;
766 var buffer = buffers.current
767 var total = buffers.count;
770 var new_index = (index + count) % total;
771 if (new_index == index)
775 buffers.buffer_list.splice(index, 1);
776 buffers.buffer_list.splice(new_index, 0, buffer);
777 move_buffer_hook.run(buffer);
779 interactive("buffer-move-forward",
780 "Move the current buffer forward in the buffer order.",
781 function (I) { buffer_move_forward(I.window, I.p); });
783 interactive("buffer-move-backward",
784 "Move the current buffer backward in the buffer order.",
785 function (I) { buffer_move_forward(I.window, -I.p); });
788 function buffer_next (window, count) {
789 var index = window.buffers.selected_index;
790 var total = window.buffers.count;
792 throw new interactive_error("No other buffer");
793 index = (index + count) % total;
796 window.buffers.current = window.buffers.get_buffer(index);
798 interactive("buffer-next",
799 "Switch to the next buffer.",
800 function (I) { buffer_next(I.window, I.p); });
801 interactive("buffer-previous",
802 "Switch to the previous buffer.",
803 function (I) { buffer_next(I.window, -I.p); });
805 function switch_to_buffer (window, buffer) {
806 if (buffer && !buffer.dead)
807 window.buffers.current = buffer;
809 interactive("switch-to-buffer",
810 "Prompt for a buffer and switch to it.",
814 (yield I.minibuffer.read_buffer(
815 $prompt = "Switch to buffer:",
816 $default = (I.window.buffers.count > 1 ?
817 I.window.buffers.buffer_history[1] :
821 define_variable("can_kill_last_buffer", true,
822 "When true, kill-buffer can kill the last buffer in a window, "+
823 "and close the window.");
825 function kill_other_buffers (buffer) {
828 var bs = buffer.window.buffers;
830 while ((b = bs.get_buffer(0)) != buffer)
832 var count = bs.count;
834 bs.kill_buffer(bs.get_buffer(1));
836 interactive("kill-other-buffers",
837 "Kill all buffers except current one.\n",
838 function (I) { kill_other_buffers(I.buffer); });
841 function kill_buffer (buffer, force) {
844 var buffers = buffer.window.buffers;
845 if (buffers.count == 1 && buffer == buffers.current) {
846 if (can_kill_last_buffer || force) {
847 delete_window(buffer.window);
850 throw interactive_error("Can't kill last buffer.");
852 buffers.kill_buffer(buffer);
854 interactive("kill-buffer",
855 "Kill a buffer specified in the minibuffer.\n" +
856 "If `can_kill_last_buffer' is set to true, an attempt to kill the "+
857 "last remaining buffer in a window will cause the window to be closed.",
859 kill_buffer((yield I.minibuffer.read_buffer($prompt = "Kill buffer:")));
862 interactive("kill-current-buffer",
863 "Kill the current buffer.\n" +
864 "If `can_kill_last_buffer' is set to true, an attempt to kill the "+
865 "last remaining buffer in a window will cause the window to be closed.",
866 function (I) { kill_buffer(I.buffer); });
868 interactive("read-buffer-kill-buffer",
869 "Kill the current selected buffer in the completions list "+
870 "in a read buffer minibuffer interaction.",
872 var s = I.window.minibuffer.current_state;
873 var i = s.selected_completion_index;
874 var c = s.completions;
877 kill_buffer(c.get_value(i));
878 s.completer.refresh();
879 s.handle_input(I.window.minibuffer);
882 interactive("bury-buffer",
883 "Bury the current buffer.\nPut the current buffer at the end of " +
884 "the buffer list, so that it is the least likely buffer to be " +
885 "selected by `switch-to-buffer'.",
886 function (I) { I.window.buffers.bury_buffer(I.buffer); });
888 interactive("unbury-buffer",
889 "Unbury the buffer lowest in the buffer-history list.\n"+
890 "With universal argument, prompt for a buffer. When "+
891 "`bury_buffer_position` is non-null, move the buffer "+
892 "to the current position in the buffer list.",
894 var buffers = I.window.buffers;
895 if (I.prefix_argument)
896 var b = yield I.minibuffer.read_buffer(
897 $prompt = "Switch to buffer:",
898 $buffers = function (visitor) {
899 var count = buffers.count;
900 for (var i = count - 1; i >= 0; --i)
901 visitor(buffers.buffer_history[i]);
903 $default = buffers.buffer_history[buffers.count - 1]);
905 b = buffers.buffer_history[buffers.count - 1];
906 buffers.unbury_buffer(b);
909 function change_directory (buffer, dir) {
910 if (buffer.page != null)
911 delete buffer.page.local.cwd;
912 buffer.local.cwd = make_file(dir);
914 interactive("change-directory",
915 "Change the current directory of the selected buffer.",
919 (yield I.minibuffer.read_existing_directory_path(
920 $prompt = "Change to directory:",
921 $initial_value = make_file(I.local.cwd).path)));
924 interactive("shell-command", null,
926 var cwd = I.local.cwd;
927 var cmd = (yield I.minibuffer.read_shell_command($cwd = cwd));
928 yield shell_command(cmd, $cwd = cwd);
933 * selection_is_embed_p is used to test whether the unfocus command can
934 * unfocus an element, even though there is a selection. This happens
935 * when the focused element is an html:embed.
937 function selection_is_embed_p (sel, focused_element) {
938 if (sel.rangeCount == 1) {
940 var r = sel.getRangeAt(0);
941 var a = r.startContainer.childNodes[r.startOffset];
942 if ((a instanceof Ci.nsIDOMHTMLEmbedElement ||
943 a instanceof Ci.nsIDOMHTMLObjectElement) &&
944 a == focused_element)
954 * unfocus is a high-level command for unfocusing hyperlinks, inputs,
955 * frames, iframes, plugins, and also clearing the selection.
957 define_buffer_local_hook("unfocus_hook");
958 function unfocus (window, buffer) {
959 // 1. if there is a selection, clear it.
960 var selc = buffer.focused_selection_controller;
962 var sel = selc.getSelection(selc.SELECTION_NORMAL);
963 var active = ! sel.isCollapsed;
964 var embed_p = selection_is_embed_p(sel, buffer.focused_element);
965 clear_selection(buffer);
966 if (active && !embed_p) {
967 window.minibuffer.message("cleared selection");
971 // 2. if there is a focused element, unfocus it.
972 if (buffer.focused_element) {
973 buffer.focused_element.blur();
974 // if an element in a detached fragment has focus, blur() will
975 // not work, and we need to take more drastic measures. the
976 // action taken was found through experiment, so it is possibly
977 // not the most concise way to unfocus such an element.
978 if (buffer.focused_element) {
979 buffer.element.focus();
980 buffer.top_frame.focus();
982 window.minibuffer.message("unfocused element");
985 // 3. if an iframe has focus, we must blur it.
986 if (buffer.focused_frame_or_null &&
987 buffer.focused_frame_or_null.frameElement)
989 buffer.focused_frame_or_null.frameElement.blur();
991 // 4. return focus to top-frame from subframes and plugins.
992 buffer.top_frame.focus();
993 buffer.top_frame.focus(); // needed to get focus back from plugins
994 window.minibuffer.message("refocused top frame");
995 // give page-modes an opportunity to set focus specially
996 unfocus_hook.run(buffer);
998 interactive("unfocus",
999 "Unfocus is a high-level command for unfocusing hyperlinks, inputs, "+
1000 "frames, iframes, plugins, and also for clearing the selection.\n"+
1001 "The action that it takes is based on precedence. If there is a "+
1002 "focused hyperlink or input, it will unfocus that. Otherwise, if "+
1003 "there is a selection, it will clear the selection. Otherwise, it "+
1004 "will return focus to the top frame from a focused frame, iframe, "+
1005 "or plugin. In the case of plugins, since they steal keyboard "+
1006 "control away from Conkeror, the normal way to unfocus them is "+
1007 "to use command-line remoting externally: conkeror -batch -f "+
1008 "unfocus. Page-modes also have an opportunity to alter the default"+
1009 "focus via the hook, `focus_hook'.",
1011 unfocus(I.window, I.buffer);
1015 function for_each_buffer (f) {
1016 for_each_window(function (w) { w.buffers.for_each(f); });
1024 define_buffer_local_hook("buffer_mode_change_hook");
1025 define_current_buffer_hook("current_buffer_mode_change_hook", "buffer_mode_change_hook");
1027 define_keywords("$display_name", "$doc");
1028 function buffer_mode (name, enable, disable) {
1029 keywords(arguments);
1030 this.name = name.replace("-","_","g");
1031 this.hyphen_name = name.replace("_","-","g");
1033 this._enable = enable;
1035 this._disable = disable;
1036 this.display_name = arguments.$display_name;
1037 this.doc = arguments.$doc;
1038 this.enable_hook = this.name + "_enable_hook";
1039 this.disable_hook = this.name + "_disable_hook";
1041 buffer_mode.prototype = {
1042 constructor: buffer_mode,
1050 enable: function (buffer) {
1053 this._enable(buffer);
1055 buffer.enabled_modes.push(this.name);
1056 if (conkeror[this.enable_hook])
1057 conkeror[this.enable_hook].run(buffer);
1058 buffer_mode_change_hook.run(buffer);
1061 disable: function (buffer) {
1064 this._disable(buffer);
1066 var i = buffer.enabled_modes.indexOf(this.name);
1068 buffer.enabled_modes.splice(i, 1);
1069 if (conkeror[this.disable_hook])
1070 conkeror[this.disable_hook].run(buffer);
1071 buffer_mode_change_hook.run(buffer);
1075 define_keywords("$constructor");
1076 function define_buffer_mode (name, enable, disable) {
1077 keywords(arguments, $constructor = buffer_mode, $doc = null);
1078 var constructor = arguments.$constructor;
1079 var m = new constructor(name, enable, disable, forward_keywords(arguments));
1080 name = m.name; // normalized
1082 define_buffer_local_hook(m.enable_hook);
1083 define_buffer_local_hook(m.disable_hook);
1084 interactive(m.hyphen_name,
1087 var enabledp = (I.buffer.enabled_modes.indexOf(name) > -1);
1089 m.disable(I.buffer);
1092 I.minibuffer.message(m.hyphen_name + (enabledp ? " disabled" : " enabled"));
1095 ignore_function_for_get_caller_source_code_reference("define_buffer_mode");
1099 * Mode Display in Minibuffer
1102 function minibuffer_mode_indicator (window) {
1103 this.window = window;
1104 var element = create_XUL(window, "label");
1105 element.setAttribute("id", "minibuffer-mode-indicator");
1106 element.setAttribute("class", "mode-text-widget");
1107 window.document.getElementById("minibuffer").appendChild(element);
1108 this.element = element;
1109 this.hook_function = method_caller(this, this.update);
1110 add_hook.call(window, "select_buffer_hook", this.hook_function);
1111 add_hook.call(window, "current_buffer_mode_change_hook", this.hook_function);
1114 minibuffer_mode_indicator.prototype = {
1115 constructor: minibuffer_mode_indicator,
1118 hook_function: null,
1119 update: function () {
1120 var buffer = this.window.buffers.current;
1121 var str = buffer.enabled_modes.map(
1123 return (conkeror[x].display_name || null);
1124 }).filter(function (x) x != null).join(" ");
1125 this.element.value = str;
1127 uninstall: function () {
1128 remove_hook.call(this.window, "select_buffer_hook", this.hook_function);
1129 remove_hook.call(this.window, "current_buffer_mode_change_hook", this.hook_function);
1130 this.element.parentNode.removeChild(this.element);
1133 define_global_window_mode("minibuffer_mode_indicator", "window_initialize_hook");
1134 minibuffer_mode_indicator_mode(true);
1138 * minibuffer-keymaps-display
1140 function minibuffer_keymaps_display_update (buffer) {
1141 var element = buffer.window.document
1142 .getElementById("keymaps-display");
1144 var str = buffer.keymaps.reduce(
1145 function (acc, kmap) {
1146 if (kmap.display_name)
1147 acc.push(kmap.display_name);
1150 if (element.value != str)
1151 element.value = str;
1155 function minibuffer_keymaps_display_initialize (window) {
1156 var element = create_XUL(window, "label");
1157 element.setAttribute("id", "keymaps-display");
1158 element.setAttribute("class", "mode-text-widget");
1159 element.setAttribute("value", "");
1160 var mb = window.document.getElementById("minibuffer");
1161 mb.appendChild(element);
1164 define_global_mode("minibuffer_keymaps_display_mode",
1165 function enable () {
1166 add_hook("window_initialize_hook", minibuffer_keymaps_display_initialize);
1167 add_hook("set_input_mode_hook", minibuffer_keymaps_display_update);
1168 for_each_window(minibuffer_keymaps_display_initialize);
1170 function disable () {
1171 remove_hook("window_initialize_hook", minibuffer_keymaps_display_initialize);
1172 remove_hook("set_input_mode_hook", minibuffer_keymaps_display_update);
1173 for_each_window(function (w) {
1174 var element = w.document
1175 .getElementById("keymaps-display");
1177 element.parentNode.removeChild(element);
1181 minibuffer_keymaps_display_mode(true);
1185 * minibuffer-keymaps-highlight
1187 function minibuffer_keymaps_highlight_update (buffer) {
1188 var mb = buffer.window.document.getElementById("minibuffer");
1189 if (buffer.keymaps.some(function (k) k.notify))
1190 dom_add_class(mb, "highlight");
1192 dom_remove_class(mb, "highlight");
1195 define_global_mode("minibuffer_keymaps_highlight_mode",
1196 function enable () {
1197 add_hook("set_input_mode_hook", minibuffer_keymaps_highlight_update);
1199 function disable () {
1200 remove_hook("set_input_mode_hook", minibuffer_keymaps_highlight_update);
1201 for_each_window(function (w) {
1202 var mb = w.document.getElementById("minibuffer");
1204 dom_remove_class("highlight");
1208 minibuffer_keymaps_highlight_mode(true);