content/common/input_messages.h

   1 // Copyright (c) 2013 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 // IPC messages for input events and other messages that require processing in
   6 // order relative to input events.
   7 // Multiply-included message file, hence no include guard.
   8
   9 #include "base/strings/string16.h"
  10 #include "content/common/content_export.h"
  11 #include "content/common/content_param_traits.h"
  12 #include "content/common/edit_command.h"
  13 #include "content/common/input/did_overscroll_params.h"
  14 #include "content/common/input/input_event.h"
  15 #include "content/common/input/input_event_ack_state.h"
  16 #include "content/common/input/input_param_traits.h"
  17 #include "content/common/input/synthetic_gesture_packet.h"
  18 #include "content/common/input/synthetic_gesture_params.h"
  19 #include "content/common/input/synthetic_pinch_gesture_params.h"
  20 #include "content/common/input/synthetic_smooth_scroll_gesture_params.h"
  21 #include "content/common/input/synthetic_tap_gesture_params.h"
  22 #include "content/common/input/touch_action.h"
  23 #include "content/public/common/common_param_traits.h"
  24 #include "ipc/ipc_message_macros.h"
  25 #include "third_party/WebKit/public/web/WebInputEvent.h"
  26 #include "ui/events/ipc/latency_info_param_traits.h"
  27 #include "ui/gfx/ipc/gfx_param_traits.h"
  28 #include "ui/gfx/point.h"
  29 #include "ui/gfx/range/range.h"
  30 #include "ui/gfx/rect.h"
  31 #include "ui/gfx/vector2d_f.h"
  32
  33 #undef IPC_MESSAGE_EXPORT
  34 #define IPC_MESSAGE_EXPORT CONTENT_EXPORT
  35
  36 #ifdef IPC_MESSAGE_START
  37 #error IPC_MESSAGE_START
  38 #endif
  39
  40 #define IPC_MESSAGE_START InputMsgStart
  41
  42 IPC_ENUM_TRAITS_MAX_VALUE(content::InputEventAckState,
  43                           content::INPUT_EVENT_ACK_STATE_MAX)
  44 IPC_ENUM_TRAITS_MAX_VALUE(
  45     content::SyntheticGestureParams::GestureSourceType,
  46     content::SyntheticGestureParams::GESTURE_SOURCE_TYPE_MAX)
  47 IPC_ENUM_TRAITS_MAX_VALUE(
  48     content::SyntheticGestureParams::GestureType,
  49     content::SyntheticGestureParams::SYNTHETIC_GESTURE_TYPE_MAX)
  50 IPC_ENUM_TRAITS_VALIDATE(content::TouchAction, (
  51     value >= 0 &&
  52     value <= content::TOUCH_ACTION_MAX &&
  53     (!(value & content::TOUCH_ACTION_NONE) ||
  54         (value == content::TOUCH_ACTION_NONE)) &&
  55     (!(value & content::TOUCH_ACTION_PINCH_ZOOM) ||
  56         (value == content::TOUCH_ACTION_MANIPULATION))))
  57
  58 IPC_STRUCT_TRAITS_BEGIN(content::DidOverscrollParams)
  59   IPC_STRUCT_TRAITS_MEMBER(accumulated_overscroll)
  60   IPC_STRUCT_TRAITS_MEMBER(latest_overscroll_delta)
  61   IPC_STRUCT_TRAITS_MEMBER(current_fling_velocity)
  62   IPC_STRUCT_TRAITS_MEMBER(causal_event_viewport_point)
  63 IPC_STRUCT_TRAITS_END()
  64
  65 IPC_STRUCT_TRAITS_BEGIN(content::EditCommand)
  66   IPC_STRUCT_TRAITS_MEMBER(name)
  67   IPC_STRUCT_TRAITS_MEMBER(value)
  68 IPC_STRUCT_TRAITS_END()
  69
  70 IPC_STRUCT_TRAITS_BEGIN(content::InputEvent)
  71   IPC_STRUCT_TRAITS_MEMBER(web_event)
  72   IPC_STRUCT_TRAITS_MEMBER(latency_info)
  73   IPC_STRUCT_TRAITS_MEMBER(is_keyboard_shortcut)
  74 IPC_STRUCT_TRAITS_END()
  75
  76 IPC_STRUCT_TRAITS_BEGIN(content::SyntheticGestureParams)
  77   IPC_STRUCT_TRAITS_MEMBER(gesture_source_type)
  78 IPC_STRUCT_TRAITS_END()
  79
  80 IPC_STRUCT_TRAITS_BEGIN(content::SyntheticSmoothScrollGestureParams)
  81   IPC_STRUCT_TRAITS_PARENT(content::SyntheticGestureParams)
  82   IPC_STRUCT_TRAITS_MEMBER(anchor)
  83   IPC_STRUCT_TRAITS_MEMBER(distances)
  84   IPC_STRUCT_TRAITS_MEMBER(prevent_fling)
  85   IPC_STRUCT_TRAITS_MEMBER(speed_in_pixels_s)
  86 IPC_STRUCT_TRAITS_END()
  87
  88 IPC_STRUCT_TRAITS_BEGIN(content::SyntheticPinchGestureParams)
  89   IPC_STRUCT_TRAITS_PARENT(content::SyntheticGestureParams)
  90   IPC_STRUCT_TRAITS_MEMBER(scale_factor)
  91   IPC_STRUCT_TRAITS_MEMBER(anchor)
  92   IPC_STRUCT_TRAITS_MEMBER(relative_pointer_speed_in_pixels_s)
  93 IPC_STRUCT_TRAITS_END()
  94
  95 IPC_STRUCT_TRAITS_BEGIN(content::SyntheticTapGestureParams)
  96   IPC_STRUCT_TRAITS_PARENT(content::SyntheticGestureParams)
  97   IPC_STRUCT_TRAITS_MEMBER(position)
  98   IPC_STRUCT_TRAITS_MEMBER(duration_ms)
  99 IPC_STRUCT_TRAITS_END()
 100
 101 IPC_STRUCT_BEGIN(InputHostMsg_HandleInputEvent_ACK_Params)
 102   IPC_STRUCT_MEMBER(blink::WebInputEvent::Type, type)
 103   IPC_STRUCT_MEMBER(content::InputEventAckState, state)
 104   IPC_STRUCT_MEMBER(ui::LatencyInfo, latency)
 105   // TODO(jdduke): Use Optional<T> type to avoid heap alloc, crbug.com/375002.
 106   IPC_STRUCT_MEMBER(scoped_ptr<content::DidOverscrollParams>, overscroll)
 107 IPC_STRUCT_END()
 108
 109 // Sends an input event to the render widget.
 110 IPC_MESSAGE_ROUTED3(InputMsg_HandleInputEvent,
 111                     IPC::WebInputEventPointer /* event */,
 112                     ui::LatencyInfo /* latency_info */,
 113                     bool /* is_keyboard_shortcut */)
 114
 115 // Sends the cursor visibility state to the render widget.
 116 IPC_MESSAGE_ROUTED1(InputMsg_CursorVisibilityChange,
 117                     bool /* is_visible */)
 118
 119 // Sets the text composition to be between the given start and end offsets in
 120 // the currently focused editable field.
 121 IPC_MESSAGE_ROUTED3(InputMsg_SetCompositionFromExistingText,
 122     int /* start */,
 123     int /* end */,
 124     std::vector<blink::WebCompositionUnderline> /* underlines */)
 125
 126 // Deletes the current selection plus the specified number of characters before
 127 // and after the selection or caret.
 128 IPC_MESSAGE_ROUTED2(InputMsg_ExtendSelectionAndDelete,
 129                     int /* before */,
 130                     int /* after */)
 131
 132 // This message sends a string being composed with an input method.
 133 IPC_MESSAGE_ROUTED4(
 134     InputMsg_ImeSetComposition,
 135     base::string16, /* text */
 136     std::vector<blink::WebCompositionUnderline>, /* underlines */
 137     int, /* selectiont_start */
 138     int /* selection_end */)
 139
 140 // This message confirms an ongoing composition.
 141 IPC_MESSAGE_ROUTED3(InputMsg_ImeConfirmComposition,
 142                     base::string16 /* text */,
 143                     gfx::Range /* replacement_range */,
 144                     bool /* keep_selection */)
 145
 146 // This message notifies the renderer that the next key event is bound to one
 147 // or more pre-defined edit commands. If the next key event is not handled
 148 // by webkit, the specified edit commands shall be executed against current
 149 // focused frame.
 150 // Parameters
 151 // * edit_commands (see chrome/common/edit_command_types.h)
 152 //   Contains one or more edit commands.
 153 // See third_party/WebKit/Source/WebCore/editing/EditorCommand.cpp for detailed
 154 // definition of webkit edit commands.
 155 //
 156 // This message must be sent just before sending a key event.
 157 IPC_MESSAGE_ROUTED1(InputMsg_SetEditCommandsForNextKeyEvent,
 158                     std::vector<content::EditCommand> /* edit_commands */)
 159
 160 // Message payload is the name/value of a WebCore edit command to execute.
 161 IPC_MESSAGE_ROUTED2(InputMsg_ExecuteEditCommand,
 162                     std::string, /* name */
 163                     std::string /* value */)
 164
 165 IPC_MESSAGE_ROUTED0(InputMsg_MouseCaptureLost)
 166
 167 // TODO(darin): figure out how this meshes with RestoreFocus
 168 IPC_MESSAGE_ROUTED1(InputMsg_SetFocus,
 169                     bool /* enable */)
 170
 171 // Tells the renderer to scroll the currently focused node into rect only if
 172 // the currently focused node is a Text node (textfield, text area or content
 173 // editable divs).
 174 IPC_MESSAGE_ROUTED1(InputMsg_ScrollFocusedEditableNodeIntoRect, gfx::Rect)
 175
 176 // These messages are typically generated from context menus and request the
 177 // renderer to apply the specified operation to the current selection.
 178 IPC_MESSAGE_ROUTED0(InputMsg_Undo)
 179 IPC_MESSAGE_ROUTED0(InputMsg_Redo)
 180 IPC_MESSAGE_ROUTED0(InputMsg_Cut)
 181 IPC_MESSAGE_ROUTED0(InputMsg_Copy)
 182 #if defined(OS_MACOSX)
 183 IPC_MESSAGE_ROUTED0(InputMsg_CopyToFindPboard)
 184 #endif
 185 IPC_MESSAGE_ROUTED0(InputMsg_Paste)
 186 IPC_MESSAGE_ROUTED0(InputMsg_PasteAndMatchStyle)
 187 // Replaces the selected region or a word around the cursor with the
 188 // specified string.
 189 IPC_MESSAGE_ROUTED1(InputMsg_Replace,
 190                     base::string16)
 191 // Replaces the misspelling in the selected region with the specified string.
 192 IPC_MESSAGE_ROUTED1(InputMsg_ReplaceMisspelling,
 193                     base::string16)
 194 IPC_MESSAGE_ROUTED0(InputMsg_Delete)
 195 IPC_MESSAGE_ROUTED0(InputMsg_SelectAll)
 196
 197 IPC_MESSAGE_ROUTED0(InputMsg_Unselect)
 198
 199 // Requests the renderer to select the region between two points.
 200 // Expects a SelectRange_ACK message when finished.
 201 IPC_MESSAGE_ROUTED2(InputMsg_SelectRange,
 202                     gfx::Point /* start */,
 203                     gfx::Point /* end */)
 204
 205 // Requests the renderer to move the caret selection toward the point.
 206 // Expects a MoveCaret_ACK message when finished.
 207 IPC_MESSAGE_ROUTED1(InputMsg_MoveCaret,
 208                     gfx::Point /* location */)
 209
 210 #if defined(OS_ANDROID)
 211 // Sent when the user clicks on the find result bar to activate a find result.
 212 // The point (x,y) is in fractions of the content document's width and height.
 213 IPC_MESSAGE_ROUTED3(InputMsg_ActivateNearestFindResult,
 214                     int /* request_id */,
 215                     float /* x */,
 216                     float /* y */)
 217 #endif
 218
 219 IPC_MESSAGE_ROUTED0(InputMsg_SyntheticGestureCompleted)
 220
 221 // -----------------------------------------------------------------------------
 222 // Messages sent from the renderer to the browser.
 223
 224 // Acknowledges receipt of a InputMsg_HandleInputEvent message.
 225 IPC_MESSAGE_ROUTED1(InputHostMsg_HandleInputEvent_ACK,
 226                     InputHostMsg_HandleInputEvent_ACK_Params)
 227
 228 IPC_MESSAGE_ROUTED1(InputHostMsg_QueueSyntheticGesture,
 229                     content::SyntheticGesturePacket)
 230
 231 // Notifies the allowed touch actions for a new touch point.
 232 IPC_MESSAGE_ROUTED1(InputHostMsg_SetTouchAction,
 233                     content::TouchAction /* touch_action */)
 234
 235 // Sent by the compositor when input scroll events are dropped due to bounds
 236 // restrictions on the root scroll offset.
 237 IPC_MESSAGE_ROUTED1(InputHostMsg_DidOverscroll,
 238                     content::DidOverscrollParams /* params */)
 239
 240 // Required for cancelling an ongoing input method composition.
 241 IPC_MESSAGE_ROUTED0(InputHostMsg_ImeCancelComposition)
 242
 243 #if defined(OS_MACOSX) || defined(USE_AURA)
 244 // On Mac and Aura IME can request composition character bounds
 245 // synchronously (see crbug.com/120597). This IPC message sends the character
 246 // bounds after every composition change to always have correct bound info.
 247 IPC_MESSAGE_ROUTED2(InputHostMsg_ImeCompositionRangeChanged,
 248                     gfx::Range /* composition range */,
 249                     std::vector<gfx::Rect> /* character bounds */)
 250 #endif
 251
 252 // Adding a new message? Stick to the sort order above: first platform
 253 // independent InputMsg, then ifdefs for platform specific InputMsg, then
 254 // platform independent InputHostMsg, then ifdefs for platform specific
 255 // InputHostMsg.