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cef/libcef/browser/browser_host_impl_linux.cc

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// Copyright (c) 2014 The Chromium Embedded Framework Authors.
// Portions copyright (c) 2011 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.
#include "libcef/browser/browser_host_impl.h"
// Include this first to avoid type conflict errors.
#include "base/tracked_objects.h"
#undef Status
#include <sys/sysinfo.h>
#include <X11/cursorfont.h>
#include "libcef/browser/context.h"
#include "libcef/browser/window_delegate_view.h"
#include "libcef/browser/window_x11.h"
#include "libcef/browser/thread_util.h"
#include "base/bind.h"
#include "content/browser/renderer_host/render_widget_host_impl.h"
#include "content/public/browser/native_web_keyboard_event.h"
#include "content/public/browser/render_view_host.h"
#include "content/public/common/file_chooser_params.h"
#include "content/public/common/renderer_preferences.h"
#include "third_party/WebKit/public/web/WebInputEvent.h"
#include "ui/views/widget/desktop_aura/desktop_window_tree_host_x11.h"
#include "ui/views/widget/widget.h"
namespace {
// Returns the number of seconds since system boot.
long GetSystemUptime() {
struct sysinfo info;
if (sysinfo(&info) == 0)
return info.uptime;
return 0;
}
// Based on ui/base/cursor/cursor_loader_x11.cc.
using blink::WebCursorInfo;
int ToCursorID(WebCursorInfo::Type type) {
switch (type) {
case WebCursorInfo::TypePointer:
return XC_left_ptr;
case WebCursorInfo::TypeCross:
return XC_crosshair;
case WebCursorInfo::TypeHand:
return XC_hand2;
case WebCursorInfo::TypeIBeam:
return XC_xterm;
case WebCursorInfo::TypeWait:
return XC_watch;
case WebCursorInfo::TypeHelp:
return XC_question_arrow;
case WebCursorInfo::TypeEastResize:
return XC_right_side;
case WebCursorInfo::TypeNorthResize:
return XC_top_side;
case WebCursorInfo::TypeNorthEastResize:
return XC_top_right_corner;
case WebCursorInfo::TypeNorthWestResize:
return XC_top_left_corner;
case WebCursorInfo::TypeSouthResize:
return XC_bottom_side;
case WebCursorInfo::TypeSouthEastResize:
return XC_bottom_right_corner;
case WebCursorInfo::TypeSouthWestResize:
return XC_bottom_left_corner;
case WebCursorInfo::TypeWestResize:
return XC_left_side;
case WebCursorInfo::TypeNorthSouthResize:
return XC_sb_v_double_arrow;
case WebCursorInfo::TypeEastWestResize:
return XC_sb_h_double_arrow;
case WebCursorInfo::TypeNorthEastSouthWestResize:
return XC_left_ptr;
case WebCursorInfo::TypeNorthWestSouthEastResize:
return XC_left_ptr;
case WebCursorInfo::TypeColumnResize:
return XC_sb_h_double_arrow;
case WebCursorInfo::TypeRowResize:
return XC_sb_v_double_arrow;
case WebCursorInfo::TypeMiddlePanning:
return XC_fleur;
case WebCursorInfo::TypeEastPanning:
return XC_sb_right_arrow;
case WebCursorInfo::TypeNorthPanning:
return XC_sb_up_arrow;
case WebCursorInfo::TypeNorthEastPanning:
return XC_top_right_corner;
case WebCursorInfo::TypeNorthWestPanning:
return XC_top_left_corner;
case WebCursorInfo::TypeSouthPanning:
return XC_sb_down_arrow;
case WebCursorInfo::TypeSouthEastPanning:
return XC_bottom_right_corner;
case WebCursorInfo::TypeSouthWestPanning:
return XC_bottom_left_corner;
case WebCursorInfo::TypeWestPanning:
return XC_sb_left_arrow;
case WebCursorInfo::TypeMove:
return XC_fleur;
case WebCursorInfo::TypeVerticalText:
return XC_left_ptr;
case WebCursorInfo::TypeCell:
return XC_left_ptr;
case WebCursorInfo::TypeContextMenu:
return XC_left_ptr;
case WebCursorInfo::TypeAlias:
return XC_left_ptr;
case WebCursorInfo::TypeProgress:
return XC_left_ptr;
case WebCursorInfo::TypeNoDrop:
return XC_left_ptr;
case WebCursorInfo::TypeCopy:
return XC_left_ptr;
case WebCursorInfo::TypeNotAllowed:
return XC_left_ptr;
case WebCursorInfo::TypeZoomIn:
return XC_left_ptr;
case WebCursorInfo::TypeZoomOut:
return XC_left_ptr;
case WebCursorInfo::TypeGrab:
return XC_left_ptr;
case WebCursorInfo::TypeGrabbing:
return XC_left_ptr;
case WebCursorInfo::TypeCustom:
case WebCursorInfo::TypeNone:
break;
}
NOTREACHED();
return 0;
}
} // namespace
ui::PlatformCursor CefBrowserHostImpl::GetPlatformCursor(
blink::WebCursorInfo::Type type) {
if (type == WebCursorInfo::TypeNone) {
if (!invisible_cursor_) {
invisible_cursor_.reset(
new ui::XScopedCursor(ui::CreateInvisibleCursor(),
gfx::GetXDisplay()));
}
return invisible_cursor_->get();
} else {
return ui::GetXCursor(ToCursorID(type));
}
}
bool CefBrowserHostImpl::PlatformCreateWindow() {
DCHECK(!window_x11_);
DCHECK(!window_widget_);
if (window_info_.width == 0)
window_info_.width = 800;
if (window_info_.height == 0)
window_info_.height = 600;
gfx::Rect rect(window_info_.x, window_info_.y,
window_info_.width, window_info_.height);
// Create a new window object. It will delete itself when the associated X11
// window is destroyed.
window_x11_ = new CefWindowX11(this, window_info_.parent_window, rect);
window_info_.window = window_x11_->xwindow();
// Add a reference that will be released in the destroy handler.
AddRef();
SkColor background_color = SK_ColorWHITE;
const CefSettings& settings = CefContext::Get()->settings();
if (CefColorGetA(settings.background_color) > 0) {
background_color = SkColorSetRGB(
CefColorGetR(settings.background_color),
CefColorGetG(settings.background_color),
CefColorGetB(settings.background_color));
}
CefWindowDelegateView* delegate_view =
new CefWindowDelegateView(background_color);
delegate_view->Init(window_info_.window,
web_contents(),
gfx::Rect(gfx::Point(), rect.size()));
window_widget_ = delegate_view->GetWidget();
window_widget_->Show();
window_x11_->Show();
// As an additional requirement on Linux, we must set the colors for the
// render widgets in webkit.
content::RendererPreferences* prefs =
web_contents_->GetMutableRendererPrefs();
prefs->focus_ring_color = SkColorSetARGB(255, 229, 151, 0);
prefs->thumb_active_color = SkColorSetRGB(244, 244, 244);
prefs->thumb_inactive_color = SkColorSetRGB(234, 234, 234);
prefs->track_color = SkColorSetRGB(211, 211, 211);
prefs->active_selection_bg_color = SkColorSetRGB(30, 144, 255);
prefs->active_selection_fg_color = SK_ColorWHITE;
prefs->inactive_selection_bg_color = SkColorSetRGB(200, 200, 200);
prefs->inactive_selection_fg_color = SkColorSetRGB(50, 50, 50);
return true;
}
void CefBrowserHostImpl::PlatformCloseWindow() {
if (window_x11_)
window_x11_->Close();
}
void CefBrowserHostImpl::PlatformSizeTo(int width, int height) {
if (window_x11_) {
window_x11_->SetBounds(
gfx::Rect(window_x11_->bounds().origin(), gfx::Size(width, height)));
}
}
void CefBrowserHostImpl::PlatformSetFocus(bool focus) {
if (!focus)
return;
if (web_contents_) {
// Give logical focus to the RenderWidgetHostViewAura in the views
// hierarchy. This does not change the native keyboard focus.
web_contents_->Focus();
}
if (window_x11_) {
// Give native focus to the DesktopNativeWidgetAura for the root window.
// Needs to be done via the ::Window so that keyboard focus is assigned
// correctly.
window_x11_->Focus();
}
}
CefWindowHandle CefBrowserHostImpl::PlatformGetWindowHandle() {
return IsWindowless() ? window_info_.parent_window : window_info_.window;
}
bool CefBrowserHostImpl::PlatformViewText(const std::string& text) {
CEF_REQUIRE_UIT();
char buff[] = "/tmp/CEFSourceXXXXXX";
int fd = mkstemp(buff);
if (fd == -1)
return false;
FILE* srcOutput = fdopen(fd, "w+");
if (!srcOutput)
return false;
if (fputs(text.c_str(), srcOutput) < 0) {
fclose(srcOutput);
return false;
}
fclose(srcOutput);
std::string newName(buff);
newName.append(".txt");
if (rename(buff, newName.c_str()) != 0)
return false;
std::string openCommand("xdg-open ");
openCommand += newName;
if (system(openCommand.c_str()) != 0)
return false;
return true;
}
void CefBrowserHostImpl::PlatformHandleKeyboardEvent(
const content::NativeWebKeyboardEvent& event) {
// TODO(cef): Is something required here to handle shortcut keys?
}
void CefBrowserHostImpl::PlatformRunFileChooser(
const FileChooserParams& params,
RunFileChooserCallback callback) {
NOTIMPLEMENTED();
callback.Run(0, std::vector<base::FilePath>());
}
void CefBrowserHostImpl::PlatformHandleExternalProtocol(const GURL& url) {
}
void CefBrowserHostImpl::PlatformTranslateKeyEvent(
content::NativeWebKeyboardEvent& result,
const CefKeyEvent& key_event) {
result.timeStampSeconds = GetSystemUptime();
result.windowsKeyCode = key_event.windows_key_code;
result.nativeKeyCode = key_event.native_key_code;
result.isSystemKey = key_event.is_system_key ? 1 : 0;
switch (key_event.type) {
case KEYEVENT_RAWKEYDOWN:
case KEYEVENT_KEYDOWN:
result.type = blink::WebInputEvent::RawKeyDown;
break;
case KEYEVENT_KEYUP:
result.type = blink::WebInputEvent::KeyUp;
break;
case KEYEVENT_CHAR:
result.type = blink::WebInputEvent::Char;
break;
default:
NOTREACHED();
}
result.text[0] = key_event.character;
result.unmodifiedText[0] = key_event.unmodified_character;
result.setKeyIdentifierFromWindowsKeyCode();
result.modifiers |= TranslateModifiers(key_event.modifiers);
}
void CefBrowserHostImpl::PlatformTranslateClickEvent(
blink::WebMouseEvent& result,
const CefMouseEvent& mouse_event,
MouseButtonType type,
bool mouseUp, int clickCount) {
PlatformTranslateMouseEvent(result, mouse_event);
switch (type) {
case MBT_LEFT:
result.type = mouseUp ? blink::WebInputEvent::MouseUp :
blink::WebInputEvent::MouseDown;
result.button = blink::WebMouseEvent::ButtonLeft;
break;
case MBT_MIDDLE:
result.type = mouseUp ? blink::WebInputEvent::MouseUp :
blink::WebInputEvent::MouseDown;
result.button = blink::WebMouseEvent::ButtonMiddle;
break;
case MBT_RIGHT:
result.type = mouseUp ? blink::WebInputEvent::MouseUp :
blink::WebInputEvent::MouseDown;
result.button = blink::WebMouseEvent::ButtonRight;
break;
default:
NOTREACHED();
}
result.clickCount = clickCount;
}
void CefBrowserHostImpl::PlatformTranslateMoveEvent(
blink::WebMouseEvent& result,
const CefMouseEvent& mouse_event,
bool mouseLeave) {
PlatformTranslateMouseEvent(result, mouse_event);
if (!mouseLeave) {
result.type = blink::WebInputEvent::MouseMove;
if (mouse_event.modifiers & EVENTFLAG_LEFT_MOUSE_BUTTON)
result.button = blink::WebMouseEvent::ButtonLeft;
else if (mouse_event.modifiers & EVENTFLAG_MIDDLE_MOUSE_BUTTON)
result.button = blink::WebMouseEvent::ButtonMiddle;
else if (mouse_event.modifiers & EVENTFLAG_RIGHT_MOUSE_BUTTON)
result.button = blink::WebMouseEvent::ButtonRight;
else
result.button = blink::WebMouseEvent::ButtonNone;
} else {
result.type = blink::WebInputEvent::MouseLeave;
result.button = blink::WebMouseEvent::ButtonNone;
}
result.clickCount = 0;
}
void CefBrowserHostImpl::PlatformTranslateWheelEvent(
blink::WebMouseWheelEvent& result,
const CefMouseEvent& mouse_event,
int deltaX, int deltaY) {
result = blink::WebMouseWheelEvent();
PlatformTranslateMouseEvent(result, mouse_event);
result.type = blink::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 = blink::WebMouseWheelEvent::PhaseNone;
result.momentumPhase = blink::WebMouseWheelEvent::PhaseNone;
if (mouse_event.modifiers & EVENTFLAG_LEFT_MOUSE_BUTTON)
result.button = blink::WebMouseEvent::ButtonLeft;
else if (mouse_event.modifiers & EVENTFLAG_MIDDLE_MOUSE_BUTTON)
result.button = blink::WebMouseEvent::ButtonMiddle;
else if (mouse_event.modifiers & EVENTFLAG_RIGHT_MOUSE_BUTTON)
result.button = blink::WebMouseEvent::ButtonRight;
else
result.button = blink::WebMouseEvent::ButtonNone;
}
void CefBrowserHostImpl::PlatformTranslateMouseEvent(
blink::WebMouseEvent& result,
const CefMouseEvent& mouse_event) {
// 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;
if (IsWindowless()) {
CefRefPtr<CefRenderHandler> handler = client_->GetRenderHandler();
if (handler.get()) {
handler->GetScreenPoint(this, result.x, result.y, result.globalX,
result.globalY);
}
} else if (window_x11_) {
const gfx::Point& origin = window_x11_->bounds().origin();
result.globalX += origin.x();
result.globalY += origin.y();
}
// modifiers
result.modifiers |= TranslateModifiers(mouse_event.modifiers);
// timestamp
result.timeStampSeconds = GetSystemUptime();
}
void CefBrowserHostImpl::PlatformNotifyMoveOrResizeStarted() {
if (IsWindowless())
return;
if (!window_x11_)
return;
views::DesktopWindowTreeHostX11* tree_host = window_x11_->GetHost();
if (!tree_host)
return;
// Explicitly set the screen bounds so that WindowTreeHost::*Screen()
// methods return the correct results.
const gfx::Rect& bounds = window_x11_->GetBoundsInScreen();
tree_host->set_screen_bounds(bounds);
// Send updated screen rectangle information to the renderer process so that
// popups are displayed in the correct location.
content::RenderWidgetHostImpl::From(web_contents()->GetRenderViewHost())->
SendScreenRects();
}
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