content/plugin/plugin_carbon_interpose_mac.cc

   1 // Copyright (c) 2012 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 #if !defined(__LP64__)
   6
   7 #include <Carbon/Carbon.h>
   8
   9 #include "content/plugin/plugin_interpose_util_mac.h"
  10 #include "ui/gfx/rect.h"
  11
  12 #pragma GCC diagnostic ignored "-Wdeprecated-declarations"
  13
  14 // Returns true if the given window is modal.
  15 static bool IsModalWindow(WindowRef window) {
  16   WindowModality modality = kWindowModalityNone;
  17   WindowRef modal_target = NULL;
  18   OSStatus status = GetWindowModality(window, &modality, &modal_target);
  19   return (status == noErr) && (modality != kWindowModalityNone);
  20 }
  21
  22 static CGRect CGRectForWindow(WindowRef window) {
  23   CGRect bounds = { { 0, 0 }, { 0, 0 } };
  24   HIWindowGetBounds(window, kWindowContentRgn, kHICoordSpace72DPIGlobal,
  25                     &bounds);
  26   return bounds;
  27 }
  28
  29 struct WindowInfo {
  30   uint32 window_id;
  31   CGRect bounds;
  32   WindowInfo(WindowRef window) {
  33     window_id = HIWindowGetCGWindowID(window);
  34     bounds = CGRectForWindow(window);
  35   }
  36 };
  37
  38 static void OnPluginWindowClosed(const WindowInfo& window_info) {
  39   mac_plugin_interposing::NotifyBrowserOfPluginHideWindow(window_info.window_id,
  40                                                           window_info.bounds);
  41 }
  42
  43 static void OnPluginWindowShown(WindowRef window) {
  44   mac_plugin_interposing::NotifyBrowserOfPluginShowWindow(
  45       HIWindowGetCGWindowID(window), CGRectForWindow(window),
  46       IsModalWindow(window));
  47 }
  48
  49 static void OnPluginWindowSelected(WindowRef window) {
  50   mac_plugin_interposing::NotifyBrowserOfPluginSelectWindow(
  51       HIWindowGetCGWindowID(window), CGRectForWindow(window),
  52       IsModalWindow(window));
  53 }
  54
  55 #pragma mark -
  56
  57 static void ChromePluginSelectWindow(WindowRef window) {
  58   mac_plugin_interposing::SwitchToPluginProcess();
  59   SelectWindow(window);
  60   OnPluginWindowSelected(window);
  61 }
  62
  63 static void ChromePluginShowWindow(WindowRef window) {
  64   mac_plugin_interposing::SwitchToPluginProcess();
  65   ShowWindow(window);
  66   OnPluginWindowShown(window);
  67 }
  68
  69 static void ChromePluginDisposeWindow(WindowRef window) {
  70   WindowInfo window_info(window);
  71   DisposeWindow(window);
  72   OnPluginWindowClosed(window_info);
  73 }
  74
  75 static void ChromePluginHideWindow(WindowRef window) {
  76   WindowInfo window_info(window);
  77   HideWindow(window);
  78   OnPluginWindowClosed(window_info);
  79 }
  80
  81 static void ChromePluginShowHide(WindowRef window, Boolean show) {
  82   if (show) {
  83     mac_plugin_interposing::SwitchToPluginProcess();
  84     ShowHide(window, show);
  85     OnPluginWindowShown(window);
  86   } else {
  87     WindowInfo window_info(window);
  88     ShowHide(window, show);
  89     OnPluginWindowClosed(window_info);
  90   }
  91 }
  92
  93 static void ChromePluginReleaseWindow(WindowRef window) {
  94   WindowInfo window_info(window);
  95   ReleaseWindow(window);
  96   OnPluginWindowClosed(window_info);
  97 }
  98
  99 static void ChromePluginDisposeDialog(DialogRef dialog) {
 100   WindowRef window = GetDialogWindow(dialog);
 101   WindowInfo window_info(window);
 102   DisposeDialog(dialog);
 103   OnPluginWindowClosed(window_info);
 104 }
 105
 106 #pragma mark -
 107
 108 struct interpose_substitution {
 109   const void* replacement;
 110   const void* original;
 111 };
 112
 113 #define INTERPOSE_FUNCTION(function) \
 114     { reinterpret_cast<const void*>(ChromePlugin##function), \
 115       reinterpret_cast<const void*>(function) }
 116
 117 __attribute__((used)) static const interpose_substitution substitutions[]
 118     __attribute__((section("__DATA, __interpose"))) = {
 119   INTERPOSE_FUNCTION(SelectWindow),
 120   INTERPOSE_FUNCTION(ShowWindow),
 121   INTERPOSE_FUNCTION(ShowHide),
 122   INTERPOSE_FUNCTION(DisposeWindow),
 123   INTERPOSE_FUNCTION(HideWindow),
 124   INTERPOSE_FUNCTION(ReleaseWindow),
 125   INTERPOSE_FUNCTION(DisposeDialog),
 126 };
 127
 128 #endif  // !__LP64__