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// Copyright (c) 2009 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#if !defined(__LP64__)
#include <Carbon/Carbon.h>
#include "chrome/plugin/plugin_interpose_util_mac.h"
#include "gfx/rect.h"
#include "webkit/glue/plugins/carbon_plugin_window_tracker_mac.h"
#pragma GCC diagnostic ignored "-Wdeprecated-declarations"
// Returns true if the given window is modal.
static bool IsModalWindow(WindowRef window) {
WindowModality modality = kWindowModalityNone;
WindowRef modal_target = NULL;
OSStatus status = GetWindowModality(window, &modality, &modal_target);
return (status == noErr) && (modality != kWindowModalityNone);
}
static bool IsContainingWindowActive(const WebPluginDelegateImpl* delegate) {
return mac_plugin_interposing::GetPluginWindowHasFocus(delegate);
}
static CGRect CGRectForWindow(WindowRef window) {
CGRect bounds = { { 0, 0 }, { 0, 0 } };
HIWindowGetBounds(window, kWindowContentRgn, kHICoordSpace72DPIGlobal,
&bounds);
return bounds;
}
struct WindowInfo {
uint32 window_id;
CGRect bounds;
WindowInfo(WindowRef window) {
window_id = HIWindowGetCGWindowID(window);
bounds = CGRectForWindow(window);
}
};
static void OnPluginWindowClosed(const WindowInfo& window_info) {
mac_plugin_interposing::NotifyBrowserOfPluginHideWindow(window_info.window_id,
window_info.bounds);
}
static void OnPluginWindowShown(WindowRef window) {
mac_plugin_interposing::NotifyBrowserOfPluginShowWindow(
HIWindowGetCGWindowID(window), CGRectForWindow(window),
IsModalWindow(window));
}
static void OnPluginWindowSelected(WindowRef window) {
mac_plugin_interposing::NotifyBrowserOfPluginSelectWindow(
HIWindowGetCGWindowID(window), CGRectForWindow(window),
IsModalWindow(window));
}
#pragma mark -
static Boolean ChromePluginIsWindowActive(WindowRef window) {
const WebPluginDelegateImpl* delegate =
CarbonPluginWindowTracker::SharedInstance()->GetDelegateForDummyWindow(
window);
return delegate ? IsContainingWindowActive(delegate)
: IsWindowActive(window);
}
static Boolean ChromePluginIsWindowHilited(WindowRef window) {
const WebPluginDelegateImpl* delegate =
CarbonPluginWindowTracker::SharedInstance()->GetDelegateForDummyWindow(
window);
return delegate ? IsContainingWindowActive(delegate)
: IsWindowHilited(window);
}
static void ChromePluginSelectWindow(WindowRef window) {
mac_plugin_interposing::SwitchToPluginProcess();
SelectWindow(window);
OnPluginWindowSelected(window);
}
static void ChromePluginShowWindow(WindowRef window) {
mac_plugin_interposing::SwitchToPluginProcess();
ShowWindow(window);
OnPluginWindowShown(window);
}
static void ChromePluginDisposeWindow(WindowRef window) {
WindowInfo window_info(window);
DisposeWindow(window);
OnPluginWindowClosed(window_info);
}
static void ChromePluginHideWindow(WindowRef window) {
WindowInfo window_info(window);
HideWindow(window);
OnPluginWindowClosed(window_info);
}
static void ChromePluginShowHide(WindowRef window, Boolean show) {
if (show) {
mac_plugin_interposing::SwitchToPluginProcess();
ShowHide(window, show);
OnPluginWindowShown(window);
} else {
WindowInfo window_info(window);
ShowHide(window, show);
OnPluginWindowClosed(window_info);
}
}
static void ChromePluginReleaseWindow(WindowRef window) {
WindowInfo window_info(window);
ReleaseWindow(window);
OnPluginWindowClosed(window_info);
}
static void ChromePluginDisposeDialog(DialogRef dialog) {
WindowRef window = GetDialogWindow(dialog);
WindowInfo window_info(window);
DisposeDialog(dialog);
OnPluginWindowClosed(window_info);
}
static WindowPartCode ChromePluginFindWindow(Point point, WindowRef* window) {
WebPluginDelegateImpl* delegate = mac_plugin_interposing::GetActiveDelegate();
CarbonPluginWindowTracker* tracker =
CarbonPluginWindowTracker::SharedInstance();
WindowRef plugin_window = tracker->GetDummyWindowForDelegate(delegate);
if (plugin_window) {
// If plugin_window is non-NULL, then we are in the middle of routing an
// event to the plugin, so we know it's destined for this window already,
// so we don't have to worry that we'll be stealing an event meant for an
// overlapping window.
Rect window_bounds;
GetWindowBounds(plugin_window, kWindowContentRgn, &window_bounds);
if (PtInRect(point, &window_bounds)) {
if (window)
*window = plugin_window;
return inContent;
}
}
return FindWindow(point, window);
}
static OSStatus ChromePluginSetThemeCursor(ThemeCursor cursor) {
WebPluginDelegateImpl* delegate = mac_plugin_interposing::GetActiveDelegate();
if (delegate) {
mac_plugin_interposing::NotifyPluginOfSetThemeCursor(delegate, cursor);
return noErr;
}
return SetThemeCursor(cursor);
}
static void ChromePluginSetCursor(const Cursor* cursor) {
WebPluginDelegateImpl* delegate = mac_plugin_interposing::GetActiveDelegate();
if (delegate) {
mac_plugin_interposing::NotifyPluginOfSetCursor(delegate, cursor);
return;
}
return SetCursor(cursor);
}
#pragma mark -
struct interpose_substitution {
const void* replacement;
const void* original;
};
#define INTERPOSE_FUNCTION(function) \
{ reinterpret_cast<const void*>(ChromePlugin##function), \
reinterpret_cast<const void*>(function) }
__attribute__((used)) static const interpose_substitution substitutions[]
__attribute__((section("__DATA, __interpose"))) = {
INTERPOSE_FUNCTION(IsWindowActive),
INTERPOSE_FUNCTION(IsWindowHilited),
INTERPOSE_FUNCTION(SelectWindow),
INTERPOSE_FUNCTION(ShowWindow),
INTERPOSE_FUNCTION(ShowHide),
INTERPOSE_FUNCTION(DisposeWindow),
INTERPOSE_FUNCTION(HideWindow),
INTERPOSE_FUNCTION(ReleaseWindow),
INTERPOSE_FUNCTION(DisposeDialog),
INTERPOSE_FUNCTION(FindWindow),
INTERPOSE_FUNCTION(SetThemeCursor),
INTERPOSE_FUNCTION(SetCursor),
};
#endif // !__LP64__
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