content/browser/plugin_process_host_mac.cc

   1 // Copyright (c) 2011 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 #include <Carbon/Carbon.h>
   6
   7 #include "build/build_config.h"
   8
   9 #include <vector>
  10
  11 #include "base/bind.h"
  12 #include "base/logging.h"
  13 #include "base/mac/mac_util.h"
  14 #include "content/browser/browser_child_process_host_impl.h"
  15 #include "content/browser/plugin_process_host.h"
  16 #include "content/public/browser/browser_thread.h"
  17 #include "content/public/browser/child_process_data.h"
  18 #include "ui/gfx/rect.h"
  19
  20 namespace content {
  21
  22 void PluginProcessHost::OnPluginShowWindow(uint32 window_id,
  23                                            gfx::Rect window_rect,
  24                                            bool modal) {
  25   plugin_visible_windows_set_.insert(window_id);
  26   if (modal)
  27     plugin_modal_windows_set_.insert(window_id);
  28   CGRect window_bounds = {
  29     { window_rect.x(), window_rect.y() },
  30     { window_rect.width(), window_rect.height() }
  31   };
  32   CGRect main_display_bounds = CGDisplayBounds(CGMainDisplayID());
  33   if (CGRectEqualToRect(window_bounds, main_display_bounds) &&
  34       (plugin_fullscreen_windows_set_.find(window_id) ==
  35        plugin_fullscreen_windows_set_.end())) {
  36     plugin_fullscreen_windows_set_.insert(window_id);
  37     // If the plugin has just shown a window that's the same dimensions as
  38     // the main display, hide the menubar so that it has the whole screen.
  39     // (but only if we haven't already seen this fullscreen window, since
  40     // otherwise our refcounting can get skewed).
  41     BrowserThread::PostTask(BrowserThread::UI, FROM_HERE,
  42                             base::Bind(base::mac::RequestFullScreen,
  43                                        base::mac::kFullScreenModeHideAll));
  44   }
  45 }
  46
  47 // Must be called on the UI thread.
  48 // If plugin_pid is -1, the browser will be the active process on return,
  49 // otherwise that process will be given focus back before this function returns.
  50 static void ReleasePluginFullScreen(pid_t plugin_pid) {
  51   // Releasing full screen only works if we are the frontmost process; grab
  52   // focus, but give it back to the plugin process if requested.
  53   base::mac::ActivateProcess(base::GetCurrentProcId());
  54   base::mac::ReleaseFullScreen(base::mac::kFullScreenModeHideAll);
  55   if (plugin_pid != -1) {
  56     base::mac::ActivateProcess(plugin_pid);
  57   }
  58 }
  59
  60 void PluginProcessHost::OnPluginHideWindow(uint32 window_id,
  61                                            gfx::Rect window_rect) {
  62   bool had_windows = !plugin_visible_windows_set_.empty();
  63   plugin_visible_windows_set_.erase(window_id);
  64   bool browser_needs_activation = had_windows &&
  65       plugin_visible_windows_set_.empty();
  66
  67   plugin_modal_windows_set_.erase(window_id);
  68   if (plugin_fullscreen_windows_set_.find(window_id) !=
  69       plugin_fullscreen_windows_set_.end()) {
  70     plugin_fullscreen_windows_set_.erase(window_id);
  71     pid_t plugin_pid =
  72         browser_needs_activation ? -1 : process_->GetData().handle;
  73     browser_needs_activation = false;
  74     BrowserThread::PostTask(BrowserThread::UI, FROM_HERE,
  75                             base::Bind(ReleasePluginFullScreen, plugin_pid));
  76   }
  77
  78   if (browser_needs_activation) {
  79     BrowserThread::PostTask(
  80         BrowserThread::UI, FROM_HERE,
  81         base::Bind(base::mac::ActivateProcess, base::GetCurrentProcId()));
  82   }
  83 }
  84
  85 void PluginProcessHost::OnAppActivation() {
  86   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO));
  87
  88   // If our plugin process has any modal windows up, we need to bring it forward
  89   // so that they act more like an in-process modal window would.
  90   if (!plugin_modal_windows_set_.empty()) {
  91     BrowserThread::PostTask(
  92         BrowserThread::UI, FROM_HERE,
  93         base::Bind(base::mac::ActivateProcess, process_->GetData().handle));
  94   }
  95 }
  96
  97 void PluginProcessHost::OnPluginSetCursorVisibility(bool visible) {
  98   if (plugin_cursor_visible_ != visible) {
  99     plugin_cursor_visible_ = visible;
 100     BrowserThread::PostTask(BrowserThread::UI, FROM_HERE,
 101                             base::Bind(base::mac::SetCursorVisibility,
 102                                        visible));
 103   }
 104 }
 105
 106 }  // namespace content