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Linux: Add off-screen rendering support (issue #518).

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git-svn-id: https://chromiumembedded.googlecode.com/svn/trunk@1294 5089003a-bbd8-11dd-ad1f-f1f9622dbc98
This commit is contained in:
Marshall Greenblatt
2013-06-27 17:40:04 +00:00
parent 947a99d592
commit 13af477401
18 changed files with 976 additions and 113 deletions
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195
libcef/browser/browser_host_impl_gtk.cc
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@ -6,17 +6,21 @@
#include "libcef/browser/browser_host_impl.h"
#include <gtk/gtk.h>
#include <sys/sysinfo.h>
#include "libcef/browser/thread_util.h"
#include "base/bind.h"
#include "base/strings/utf_string_conversions.h"
#include "content/public/browser/native_web_keyboard_event.h"
#include "content/public/browser/web_contents_view.h"
#include "content/public/common/file_chooser_params.h"
#include "content/public/common/renderer_preferences.h"
#include "grit/cef_strings.h"
#include "grit/ui_strings.h"
#include "net/base/mime_util.h"
#include "third_party/WebKit/public/web/gtk/WebInputEventFactory.h"
#include "third_party/WebKit/public/web/WebInputEvent.h"
#include "ui/base/l10n/l10n_util.h"
namespace {
@ -231,6 +235,14 @@ bool RunFileDialog(const content::FileChooserParams& params,
return success;
}
// Returns the number of seconds since system boot.
long GetSystemUptime() {
struct sysinfo info;
if (sysinfo(&info) == 0)
return info.uptime;
return 0;
}
} // namespace
bool CefBrowserHostImpl::PlatformCreateWindow() {
@ -308,7 +320,9 @@ void CefBrowserHostImpl::PlatformSizeTo(int width, int height) {
}
CefWindowHandle CefBrowserHostImpl::PlatformGetWindowHandle() {
return window_info_.widget;
return IsWindowRenderingDisabled() ?
window_info_.parent_widget :
window_info_.widget;
}
bool CefBrowserHostImpl::PlatformViewText(const std::string& text) {
@ -371,49 +385,190 @@ void CefBrowserHostImpl::PlatformHandleExternalProtocol(const GURL& url) {
// static
bool CefBrowserHostImpl::IsWindowRenderingDisabled(const CefWindowInfo& info) {
// TODO(port): Implement this method as part of off-screen rendering support.
return false;
return info.window_rendering_disabled ? true : false;
}
bool CefBrowserHostImpl::IsTransparent() {
return false;
return window_info_.transparent_painting != 0;
}
void CefBrowserHostImpl::PlatformTranslateKeyEvent(
content::NativeWebKeyboardEvent& native_event,
const CefKeyEvent& event) {
// TODO(port): Implement this method as part of off-screen rendering support.
NOTIMPLEMENTED();
content::NativeWebKeyboardEvent& result,
const CefKeyEvent& key_event) {
// Use a synthetic GdkEventKey in order to obtain the windowsKeyCode member
// from the NativeWebKeyboardEvent constructor. This is the only member
// which cannot be easily translated (without hardcoding keyCodes).
guint state = 0;
if (key_event.modifiers & EVENTFLAG_SHIFT_DOWN)
state |= GDK_SHIFT_MASK;
if (key_event.modifiers & EVENTFLAG_CAPS_LOCK_ON)
state |= GDK_LOCK_MASK;
if (key_event.modifiers & EVENTFLAG_CONTROL_DOWN)
state |= GDK_CONTROL_MASK;
if (key_event.modifiers & EVENTFLAG_ALT_DOWN)
state |= GDK_MOD1_MASK;
if (key_event.modifiers & EVENTFLAG_LEFT_MOUSE_BUTTON)
state |= GDK_BUTTON1_MASK;
if (key_event.modifiers & EVENTFLAG_MIDDLE_MOUSE_BUTTON)
state |= GDK_BUTTON2_MASK;
if (key_event.modifiers & EVENTFLAG_RIGHT_MOUSE_BUTTON)
state |= GDK_BUTTON3_MASK;
GdkKeymap* keymap = gdk_keymap_get_for_display(gdk_display_get_default());
GdkKeymapKey *keys = NULL;
gint n_keys = 0;
if (gdk_keymap_get_entries_for_keyval(keymap, key_event.native_key_code,
&keys, &n_keys)) {
GdkEventKey event;
event.type = GDK_KEY_PRESS;
event.window = NULL;
event.send_event = 0;
event.time = 0;
event.state = state;
event.keyval = key_event.native_key_code;
event.length = 0;
event.string = NULL;
event.hardware_keycode = keys[0].keycode;
event.group = keys[0].group;
event.is_modifier = 0;
g_free(keys);
result = content::NativeWebKeyboardEvent(
reinterpret_cast<GdkEvent*>(&event));
}
result.timeStampSeconds = GetSystemUptime();
switch (key_event.type) {
case KEYEVENT_RAWKEYDOWN:
case KEYEVENT_KEYDOWN:
result.type = WebKit::WebInputEvent::RawKeyDown;
break;
case KEYEVENT_KEYUP:
result.type = WebKit::WebInputEvent::KeyUp;
break;
case KEYEVENT_CHAR:
result.type = WebKit::WebInputEvent::Char;
break;
default:
NOTREACHED();
}
}
void CefBrowserHostImpl::PlatformTranslateClickEvent(
WebKit::WebMouseEvent& ev,
WebKit::WebMouseEvent& result,
const CefMouseEvent& mouse_event,
MouseButtonType type,
bool mouseUp, int clickCount) {
// TODO(port): Implement this method as part of off-screen rendering support.
NOTIMPLEMENTED();
PlatformTranslateMouseEvent(result, mouse_event);
switch (type) {
case MBT_LEFT:
result.type = mouseUp ? WebKit::WebInputEvent::MouseUp :
WebKit::WebInputEvent::MouseDown;
result.button = WebKit::WebMouseEvent::ButtonLeft;
break;
case MBT_MIDDLE:
result.type = mouseUp ? WebKit::WebInputEvent::MouseUp :
WebKit::WebInputEvent::MouseDown;
result.button = WebKit::WebMouseEvent::ButtonMiddle;
break;
case MBT_RIGHT:
result.type = mouseUp ? WebKit::WebInputEvent::MouseUp :
WebKit::WebInputEvent::MouseDown;
result.button = WebKit::WebMouseEvent::ButtonRight;
break;
default:
NOTREACHED();
}
result.clickCount = clickCount;
}
void CefBrowserHostImpl::PlatformTranslateMoveEvent(
WebKit::WebMouseEvent& ev,
WebKit::WebMouseEvent& result,
const CefMouseEvent& mouse_event,
bool mouseLeave) {
// TODO(port): Implement this method as part of off-screen rendering support.
NOTIMPLEMENTED();
PlatformTranslateMouseEvent(result, mouse_event);
if (!mouseLeave) {
result.type = WebKit::WebInputEvent::MouseMove;
if (mouse_event.modifiers & EVENTFLAG_LEFT_MOUSE_BUTTON)
result.button = WebKit::WebMouseEvent::ButtonLeft;
else if (mouse_event.modifiers & EVENTFLAG_MIDDLE_MOUSE_BUTTON)
result.button = WebKit::WebMouseEvent::ButtonMiddle;
else if (mouse_event.modifiers & EVENTFLAG_RIGHT_MOUSE_BUTTON)
result.button = WebKit::WebMouseEvent::ButtonRight;
else
result.button = WebKit::WebMouseEvent::ButtonNone;
} else {
result.type = WebKit::WebInputEvent::MouseLeave;
result.button = WebKit::WebMouseEvent::ButtonNone;
}
result.clickCount = 0;
}
void CefBrowserHostImpl::PlatformTranslateWheelEvent(
WebKit::WebMouseWheelEvent& ev,
WebKit::WebMouseWheelEvent& result,
const CefMouseEvent& mouse_event,
int deltaX, int deltaY) {
// TODO(port): Implement this method as part of off-screen rendering support.
NOTIMPLEMENTED();
result = WebKit::WebMouseWheelEvent();
PlatformTranslateMouseEvent(result, mouse_event);
result.type = WebKit::WebInputEvent::MouseWheel;
static const double scrollbarPixelsPerGtkTick = 40.0;
result.deltaX = deltaX;
result.deltaY = deltaY;
result.wheelTicksX = result.deltaX / scrollbarPixelsPerGtkTick;
result.wheelTicksY = result.deltaY / scrollbarPixelsPerGtkTick;
result.hasPreciseScrollingDeltas = true;
// Unless the phase and momentumPhase are passed in as parameters to this
// function, there is no way to know them
result.phase = WebKit::WebMouseWheelEvent::PhaseNone;
result.momentumPhase = WebKit::WebMouseWheelEvent::PhaseNone;
if (mouse_event.modifiers & EVENTFLAG_LEFT_MOUSE_BUTTON)
result.button = WebKit::WebMouseEvent::ButtonLeft;
else if (mouse_event.modifiers & EVENTFLAG_MIDDLE_MOUSE_BUTTON)
result.button = WebKit::WebMouseEvent::ButtonMiddle;
else if (mouse_event.modifiers & EVENTFLAG_RIGHT_MOUSE_BUTTON)
result.button = WebKit::WebMouseEvent::ButtonRight;
else
result.button = WebKit::WebMouseEvent::ButtonNone;
}
void CefBrowserHostImpl::PlatformTranslateMouseEvent(
WebKit::WebMouseEvent& ev,
WebKit::WebMouseEvent& result,
const CefMouseEvent& mouse_event) {
// TODO(port): Implement this method as part of off-screen rendering support.
NOTIMPLEMENTED();
// position
result.x = mouse_event.x;
result.y = mouse_event.y;
result.windowX = result.x;
result.windowY = result.y;
result.globalX = result.x;
result.globalY = result.y;
// global position
if (IsWindowRenderingDisabled()) {
GetClient()->GetRenderHandler()->GetScreenPoint(GetBrowser(),
result.x, result.y,
result.globalX, result.globalY);
} else {
GtkWidget* window = gtk_widget_get_toplevel(GetWindowHandle());
GdkWindow* gdk_window = gtk_widget_get_window(window);
gint xorigin, yorigin;
gdk_window_get_root_origin(gdk_window, &xorigin, &yorigin);
result.globalX = xorigin + result.x;
result.globalY = yorigin + result.y;
}
// modifiers
result.modifiers |= TranslateModifiers(mouse_event.modifiers);
// timestamp
result.timeStampSeconds = GetSystemUptime();
}