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chromium/chromium-60.0.3112.78-gtk2f...

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diff -up chromium-60.0.3112.78/chrome/browser/ui/libgtkui/gtk_ui.cc.gtk2fix chromium-60.0.3112.78/chrome/browser/ui/libgtkui/gtk_ui.cc
--- chromium-60.0.3112.78/chrome/browser/ui/libgtkui/gtk_ui.cc.gtk2fix 2017-08-03 10:26:36.816787227 -0400
+++ chromium-60.0.3112.78/chrome/browser/ui/libgtkui/gtk_ui.cc 2017-08-03 10:56:53.345661368 -0400
@@ -60,6 +60,7 @@
#include "ui/views/controls/button/blue_button.h"
#include "ui/views/controls/button/label_button.h"
#include "ui/views/controls/button/label_button_border.h"
+#include "ui/views/linux_ui/device_scale_factor_observer.h"
#include "ui/views/linux_ui/window_button_order_observer.h"
#include "ui/views/resources/grit/views_resources.h"
@@ -315,17 +316,6 @@ gfx::FontRenderParams GetGtkFontRenderPa
return params;
}
-float GetRawDeviceScaleFactor() {
- if (display::Display::HasForceDeviceScaleFactor())
- return display::Display::GetForcedDeviceScaleFactor();
-
- GdkScreen* screen = gdk_screen_get_default();
- gint scale = gdk_screen_get_monitor_scale_factor(
- screen, gdk_screen_get_primary_monitor(screen));
- gdouble resolution = gdk_screen_get_resolution(screen);
- return resolution <= 0 ? scale : resolution * scale / kDefaultDPI;
-}
-
views::LinuxUI::NonClientMiddleClickAction GetDefaultMiddleClickAction() {
std::unique_ptr<base::Environment> env(base::Environment::Create());
switch (base::nix::GetDesktopEnvironment(env.get())) {
@@ -414,19 +404,17 @@ GtkUi::GtkUi() : middle_click_action_(Ge
#if GTK_MAJOR_VERSION == 2
native_theme_ = NativeThemeGtk2::instance();
fake_window_ = chrome_gtk_frame_new();
- gtk_widget_realize(fake_window_); // Is this necessary?
#elif GTK_MAJOR_VERSION == 3
native_theme_ = NativeThemeGtk3::instance();
- (void)fake_window_; // Silence the unused warning.
+ fake_window_ = gtk_window_new(GTK_WINDOW_TOPLEVEL);
#else
#error "Unsupported GTK version"
#endif
+ gtk_widget_realize(fake_window_);
}
GtkUi::~GtkUi() {
-#if GTK_MAJOR_VERSION == 2
gtk_widget_destroy(fake_window_);
-#endif
}
void OnThemeChanged(GObject* obj, GParamSpec* param, GtkUi* gtkui) {
@@ -440,6 +428,17 @@ void GtkUi::Initialize() {
g_signal_connect_after(settings, "notify::gtk-icon-theme-name",
G_CALLBACK(OnThemeChanged), this);
+ GdkScreen* screen = gdk_screen_get_default();
+ // Listen for DPI changes.
+ g_signal_connect_after(screen, "notify::resolution",
+ G_CALLBACK(OnDeviceScaleFactorMaybeChangedThunk),
+ this);
+ // Listen for scale factor changes. We would prefer to listen on
+ // |screen|, but there is no scale-factor property, so use an
+ // unmapped window instead.
+ g_signal_connect(fake_window_, "notify::scale-factor",
+ G_CALLBACK(OnDeviceScaleFactorMaybeChangedThunk), this);
+
LoadGtkValues();
#if BUILDFLAG(ENABLE_BASIC_PRINTING)
@@ -701,12 +700,12 @@ void GtkUi::AddWindowButtonOrderObserver
observer->OnWindowButtonOrderingChange(leading_buttons_, trailing_buttons_);
}
- observer_list_.AddObserver(observer);
+ window_button_order_observer_list_.AddObserver(observer);
}
void GtkUi::RemoveWindowButtonOrderObserver(
views::WindowButtonOrderObserver* observer) {
- observer_list_.RemoveObserver(observer);
+ window_button_order_observer_list_.RemoveObserver(observer);
}
void GtkUi::SetWindowButtonOrdering(
@@ -715,8 +714,10 @@ void GtkUi::SetWindowButtonOrdering(
leading_buttons_ = leading_buttons;
trailing_buttons_ = trailing_buttons;
- for (views::WindowButtonOrderObserver& observer : observer_list_)
+ for (views::WindowButtonOrderObserver& observer :
+ window_button_order_observer_list_) {
observer.OnWindowButtonOrderingChange(leading_buttons_, trailing_buttons_);
+ }
}
void GtkUi::SetNonClientMiddleClickAction(NonClientMiddleClickAction action) {
@@ -768,6 +769,16 @@ void GtkUi::NotifyWindowManagerStartupCo
gdk_notify_startup_complete();
}
+void GtkUi::AddDeviceScaleFactorObserver(
+ views::DeviceScaleFactorObserver* observer) {
+ device_scale_factor_observer_list_.AddObserver(observer);
+}
+
+void GtkUi::RemoveDeviceScaleFactorObserver(
+ views::DeviceScaleFactorObserver* observer) {
+ device_scale_factor_observer_list_.RemoveObserver(observer);
+}
+
bool GtkUi::MatchEvent(const ui::Event& event,
std::vector<ui::TextEditCommandAuraLinux>* commands) {
// Ensure that we have a keyboard handler.
@@ -777,6 +788,10 @@ bool GtkUi::MatchEvent(const ui::Event&
return key_bindings_handler_->MatchEvent(event, commands);
}
+void GtkUi::OnDeviceScaleFactorMaybeChanged(void*, GParamSpec*) {
+ UpdateDeviceScaleFactor();
+}
+
void GtkUi::SetScrollbarColors() {
thumb_active_color_ = SkColorSetRGB(244, 244, 244);
thumb_inactive_color_ = SkColorSetRGB(234, 234, 234);
@@ -1037,14 +1052,38 @@ void GtkUi::ResetStyle() {
native_theme_->NotifyObservers();
}
-void GtkUi::UpdateDeviceScaleFactor() {
- // Note: Linux chrome currently does not support dynamic DPI
- // changes. This is to allow flags to override the DPI settings
- // during startup.
- float scale = GetRawDeviceScaleFactor();
+float GtkUi::GetRawDeviceScaleFactor() {
+ if (display::Display::HasForceDeviceScaleFactor())
+ return display::Display::GetForcedDeviceScaleFactor();
+
+#if GTK_MAJOR_VERSION == 2
+ GtkSettings* gtk_settings = gtk_settings_get_default();
+ gint gtk_dpi = -1;
+ g_object_get(gtk_settings, "gtk-xft-dpi", &gtk_dpi, nullptr);
+ const float scale_factor = gtk_dpi / (1024 * kDefaultDPI);
+#else
+ GdkScreen* screen = gdk_screen_get_default();
+ gint scale = gtk_widget_get_scale_factor(fake_window_);
+ DCHECK_GT(scale, 0);
+ gdouble resolution = gdk_screen_get_resolution(screen);
+ const float scale_factor =
+ resolution <= 0 ? scale : resolution * scale / kDefaultDPI;
+#endif
+
// Blacklist scaling factors <120% (crbug.com/484400) and round
// to 1 decimal to prevent rendering problems (crbug.com/485183).
- device_scale_factor_ = scale < 1.2f ? 1.0f : roundf(scale * 10) / 10;
+ return scale_factor < 1.2f ? 1.0f : roundf(scale_factor * 10) / 10;
+}
+
+void GtkUi::UpdateDeviceScaleFactor() {
+ float old_device_scale_factor = device_scale_factor_;
+ device_scale_factor_ = GetRawDeviceScaleFactor();
+ if (device_scale_factor_ != old_device_scale_factor) {
+ for (views::DeviceScaleFactorObserver& observer :
+ device_scale_factor_observer_list_) {
+ observer.OnDeviceScaleFactorChanged();
+ }
+ }
UpdateDefaultFont();
}
diff -up chromium-60.0.3112.78/chrome/browser/ui/libgtkui/gtk_ui.h.gtk2fix chromium-60.0.3112.78/chrome/browser/ui/libgtkui/gtk_ui.h
--- chromium-60.0.3112.78/chrome/browser/ui/libgtkui/gtk_ui.h.gtk2fix 2017-08-03 10:35:28.031517634 -0400
+++ chromium-60.0.3112.78/chrome/browser/ui/libgtkui/gtk_ui.h 2017-08-03 10:37:29.300173415 -0400
@@ -18,12 +18,14 @@
#include "ui/views/linux_ui/linux_ui.h"
#include "ui/views/window/frame_buttons.h"
+typedef struct _GParamSpec GParamSpec;
typedef struct _GtkStyle GtkStyle;
typedef struct _GtkWidget GtkWidget;
namespace libgtkui {
class Gtk2KeyBindingsHandler;
class GConfListener;
+class DeviceScaleFactorObserver;
// Interface to GTK2 desktop features.
//
@@ -97,6 +99,10 @@ class GtkUi : public views::LinuxUI {
bool UnityIsRunning() override;
NonClientMiddleClickAction GetNonClientMiddleClickAction() override;
void NotifyWindowManagerStartupComplete() override;
+ void AddDeviceScaleFactorObserver(
+ views::DeviceScaleFactorObserver* observer) override;
+ void RemoveDeviceScaleFactorObserver(
+ views::DeviceScaleFactorObserver* observer) override;
// ui::TextEditKeybindingDelegate:
bool MatchEvent(const ui::Event& event,
@@ -110,6 +116,12 @@ class GtkUi : public views::LinuxUI {
typedef std::map<int, SkColor> ColorMap;
typedef std::map<int, color_utils::HSL> TintMap;
+ CHROMEG_CALLBACK_1(GtkUi,
+ void,
+ OnDeviceScaleFactorMaybeChanged,
+ void*,
+ GParamSpec*);
+
// This method returns the colors webkit will use for the scrollbars. When no
// colors are specified by the GTK+ theme, this function averages of the
// thumb part and of the track colors.
@@ -129,9 +141,12 @@ class GtkUi : public views::LinuxUI {
bool GetChromeStyleColor(const char* sytle_property,
SkColor* ret_color) const;
+ float GetRawDeviceScaleFactor();
+
ui::NativeTheme* native_theme_;
- // A GtkWindow object with the class "ChromeGtkFrame".
+ // On Gtk2, A GtkWindow object with the class "ChromeGtkFrame". On
+ // Gtk3, a regular GtkWindow.
GtkWidget* fake_window_;
// Colors calculated by LoadGtkValues() that are given to the
@@ -171,7 +186,12 @@ class GtkUi : public views::LinuxUI {
std::unique_ptr<Gtk2KeyBindingsHandler> key_bindings_handler_;
// Objects to notify when the window frame button order changes.
- base::ObserverList<views::WindowButtonOrderObserver> observer_list_;
+ base::ObserverList<views::WindowButtonOrderObserver>
+ window_button_order_observer_list_;
+
+ // Objects to notify when the device scale factor changes.
+ base::ObserverList<views::DeviceScaleFactorObserver>
+ device_scale_factor_observer_list_;
// Whether we should lower the window on a middle click to the non client
// area.
diff -up chromium-60.0.3112.78/ui/views/linux_ui/device_scale_factor_observer.h.gtk2fix chromium-60.0.3112.78/ui/views/linux_ui/device_scale_factor_observer.h
--- chromium-60.0.3112.78/ui/views/linux_ui/device_scale_factor_observer.h.gtk2fix 2017-08-03 10:39:23.600963296 -0400
+++ chromium-60.0.3112.78/ui/views/linux_ui/device_scale_factor_observer.h 2017-08-03 10:39:39.024664885 -0400
@@ -0,0 +1,19 @@
+// Copyright 2017 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.
+
+#ifndef UI_VIEWS_LINUX_UI_DEVICE_SCALE_FACTOR_OBSERVER_H_
+#define UI_VIEWS_LINUX_UI_DEVICE_SCALE_FACTOR_OBSERVER_H_
+
+namespace views {
+
+class DeviceScaleFactorObserver {
+ public:
+ virtual ~DeviceScaleFactorObserver() {}
+
+ virtual void OnDeviceScaleFactorChanged() = 0;
+};
+
+} // namespace views
+
+#endif // UI_VIEWS_LINUX_UI_DEVICE_SCALE_FACTOR_OBSERVER_H_
diff -up chromium-60.0.3112.78/ui/views/linux_ui/linux_ui.h.gtk2fix chromium-60.0.3112.78/ui/views/linux_ui/linux_ui.h
--- chromium-60.0.3112.78/ui/views/linux_ui/linux_ui.h.gtk2fix 2017-08-03 10:39:48.866474799 -0400
+++ chromium-60.0.3112.78/ui/views/linux_ui/linux_ui.h 2017-08-03 10:41:05.598991893 -0400
@@ -38,6 +38,7 @@ class NativeTheme;
namespace views {
class Border;
+class DeviceScaleFactorObserver;
class LabelButton;
class LabelButtonBorder;
class WindowButtonOrderObserver;
@@ -157,6 +158,16 @@ class VIEWS_EXPORT LinuxUI : public ui::
// Determines the device scale factor of the primary screen.
virtual float GetDeviceScaleFactor() const = 0;
+
+ // Registers |observer| to be notified about changes to the device
+ // scale factor.
+ virtual void AddDeviceScaleFactorObserver(
+ DeviceScaleFactorObserver* observer) = 0;
+
+ // Unregisters |observer| from receiving changes to the device scale
+ // factor.
+ virtual void RemoveDeviceScaleFactorObserver(
+ DeviceScaleFactorObserver* observer) = 0;
};
} // namespace views
diff -up chromium-60.0.3112.78/ui/views/test/desktop_screen_x11_test_api.cc.gtk2fix chromium-60.0.3112.78/ui/views/test/desktop_screen_x11_test_api.cc
--- chromium-60.0.3112.78/ui/views/test/desktop_screen_x11_test_api.cc.gtk2fix 2017-08-03 10:41:28.014558483 -0400
+++ chromium-60.0.3112.78/ui/views/test/desktop_screen_x11_test_api.cc 2017-08-03 10:41:49.326146074 -0400
@@ -13,7 +13,7 @@ namespace test {
void DesktopScreenX11TestApi::UpdateDisplays() {
DesktopScreenX11* screen =
static_cast<DesktopScreenX11*>(display::Screen::GetScreen());
- screen->ConfigureTimerFired();
+ screen->UpdateDisplays();
}
} // namespace test
diff -up chromium-60.0.3112.78/ui/views/widget/desktop_aura/desktop_screen_x11.cc.gtk2fix chromium-60.0.3112.78/ui/views/widget/desktop_aura/desktop_screen_x11.cc
--- chromium-60.0.3112.78/ui/views/widget/desktop_aura/desktop_screen_x11.cc.gtk2fix 2017-08-03 10:41:59.219954866 -0400
+++ chromium-60.0.3112.78/ui/views/widget/desktop_aura/desktop_screen_x11.cc 2017-08-03 10:47:16.589818323 -0400
@@ -11,6 +11,7 @@
#undef RootWindow
#include "base/logging.h"
+#include "base/threading/thread_task_runner_handle.h"
#include "base/trace_event/trace_event.h"
#include "ui/aura/window.h"
#include "ui/aura/window_event_dispatcher.h"
@@ -40,10 +41,6 @@ const char* const kAtomsToCache[] = {
nullptr
};
-// The delay to perform configuration after RRNotify. See the comment
-// in |Dispatch()|.
-const int64_t kConfigureDelayMs = 500;
-
double GetDeviceScaleFactor() {
float device_scale_factor = 1.0f;
if (views::LinuxUI::instance()) {
@@ -95,7 +92,10 @@ DesktopScreenX11::DesktopScreenX11()
has_xrandr_(false),
xrandr_event_base_(0),
primary_display_index_(0),
+ weak_factory_(this),
atom_cache_(xdisplay_, kAtomsToCache) {
+ if (views::LinuxUI::instance())
+ views::LinuxUI::instance()->AddDeviceScaleFactorObserver(this);
// We only support 1.3+. There were library changes before this and we should
// use the new interface instead of the 1.2 one.
int randr_version_major = 0;
@@ -124,6 +124,8 @@ DesktopScreenX11::DesktopScreenX11()
}
DesktopScreenX11::~DesktopScreenX11() {
+ if (views::LinuxUI::instance())
+ views::LinuxUI::instance()->AddDeviceScaleFactorObserver(this);
if (has_xrandr_ && ui::PlatformEventSource::GetInstance())
ui::PlatformEventSource::GetInstance()->RemovePlatformEventDispatcher(this);
}
@@ -251,18 +253,7 @@ uint32_t DesktopScreenX11::DispatchEvent
} else if (event->type - xrandr_event_base_ == RRNotify ||
(event->type == PropertyNotify &&
event->xproperty.atom == atom_cache_.GetAtom("_NET_WORKAREA"))) {
- // There's some sort of observer dispatch going on here, but I don't think
- // it's the screen's?
- if (configure_timer_.get() && configure_timer_->IsRunning()) {
- configure_timer_->Reset();
- } else {
- configure_timer_.reset(new base::OneShotTimer());
- configure_timer_->Start(
- FROM_HERE,
- base::TimeDelta::FromMilliseconds(kConfigureDelayMs),
- this,
- &DesktopScreenX11::ConfigureTimerFired);
- }
+ RestartDelayedConfigurationTask();
} else {
NOTREACHED();
}
@@ -270,11 +261,15 @@ uint32_t DesktopScreenX11::DispatchEvent
return ui::POST_DISPATCH_NONE;
}
+void DesktopScreenX11::OnDeviceScaleFactorChanged() {
+ RestartDelayedConfigurationTask();
+}
+
// static
void DesktopScreenX11::UpdateDeviceScaleFactorForTest() {
DesktopScreenX11* screen =
static_cast<DesktopScreenX11*>(display::Screen::GetScreen());
- screen->ConfigureTimerFired();
+ screen->UpdateDisplays();
}
////////////////////////////////////////////////////////////////////////////////
@@ -288,7 +283,11 @@ DesktopScreenX11::DesktopScreenX11(
xrandr_event_base_(0),
displays_(test_displays),
primary_display_index_(0),
- atom_cache_(xdisplay_, kAtomsToCache) {}
+ weak_factory_(this),
+ atom_cache_(xdisplay_, kAtomsToCache) {
+ if (views::LinuxUI::instance())
+ views::LinuxUI::instance()->AddDeviceScaleFactorObserver(this);
+}
std::vector<display::Display> DesktopScreenX11::BuildDisplaysFromXRandRInfo() {
std::vector<display::Display> displays;
@@ -390,7 +389,14 @@ std::vector<display::Display> DesktopScr
return displays;
}
-void DesktopScreenX11::ConfigureTimerFired() {
+void DesktopScreenX11::RestartDelayedConfigurationTask() {
+ delayed_configuration_task_.Reset(base::Bind(
+ &DesktopScreenX11::UpdateDisplays, weak_factory_.GetWeakPtr()));
+ base::ThreadTaskRunnerHandle::Get()->PostTask(
+ FROM_HERE, delayed_configuration_task_.callback());
+}
+
+void DesktopScreenX11::UpdateDisplays() {
std::vector<display::Display> old_displays = displays_;
SetDisplaysInternal(BuildDisplaysFromXRandRInfo());
change_notifier_.NotifyDisplaysChanged(old_displays, displays_);
diff -up chromium-60.0.3112.78/ui/views/widget/desktop_aura/desktop_screen_x11.h.gtk2fix chromium-60.0.3112.78/ui/views/widget/desktop_aura/desktop_screen_x11.h
--- chromium-60.0.3112.78/ui/views/widget/desktop_aura/desktop_screen_x11.h.gtk2fix 2017-08-03 10:47:28.734583288 -0400
+++ chromium-60.0.3112.78/ui/views/widget/desktop_aura/desktop_screen_x11.h 2017-08-03 10:49:54.850756813 -0400
@@ -9,11 +9,12 @@
#include <memory>
+#include "base/cancelable_callback.h"
#include "base/macros.h"
-#include "base/timer/timer.h"
#include "ui/display/display_change_notifier.h"
#include "ui/display/screen.h"
#include "ui/events/platform/platform_event_dispatcher.h"
+#include "ui/views/linux_ui/device_scale_factor_observer.h"
#include "ui/gfx/x/x11_atom_cache.h"
#include "ui/views/views_export.h"
@@ -30,7 +31,8 @@ class DesktopScreenX11TestApi;
// Our singleton screen implementation that talks to xrandr.
class VIEWS_EXPORT DesktopScreenX11 : public display::Screen,
- public ui::PlatformEventDispatcher {
+ public ui::PlatformEventDispatcher,
+ public views::DeviceScaleFactorObserver {
public:
DesktopScreenX11();
@@ -56,6 +58,9 @@ class VIEWS_EXPORT DesktopScreenX11 : pu
bool CanDispatchEvent(const ui::PlatformEvent& event) override;
uint32_t DispatchEvent(const ui::PlatformEvent& event) override;
+ // views::DeviceScaleFactorObserver:
+ void OnDeviceScaleFactorChanged() override;
+
static void UpdateDeviceScaleFactorForTest();
private:
@@ -69,10 +74,15 @@ class VIEWS_EXPORT DesktopScreenX11 : pu
// the X server.
std::vector<display::Display> BuildDisplaysFromXRandRInfo();
- // We delay updating the display so we can coalesce events.
- void ConfigureTimerFired();
+ // Removes |delayed_configuration_task_| from the task queue (if
+ // it's in the queue) and adds it back at the end of the queue.
+ void RestartDelayedConfigurationTask();
+
+ // Updates |displays_| with the latest XRandR info.
+ void UpdateDisplays();
- // Updates |displays_| and sets FontRenderParams's scale factor.
+ // Updates |displays_| from |displays| and sets FontRenderParams's scale
+ // factor.
void SetDisplaysInternal(const std::vector<display::Display>& displays);
Display* xdisplay_;
@@ -91,12 +101,14 @@ class VIEWS_EXPORT DesktopScreenX11 : pu
// The index into displays_ that represents the primary display.
size_t primary_display_index_;
- // The timer to delay configuring outputs. See also the comments in
- // Dispatch().
- std::unique_ptr<base::OneShotTimer> configure_timer_;
+ // The task to delay configuring outputs. We delay updating the
+ // display so we can coalesce events.
+ base::CancelableCallback<void()> delayed_configuration_task_;
display::DisplayChangeNotifier change_notifier_;
+ base::WeakPtrFactory<DesktopScreenX11> weak_factory_;
+
ui::X11AtomCache atom_cache_;
DISALLOW_COPY_AND_ASSIGN(DesktopScreenX11);
diff -up chromium-60.0.3112.78/ui/views/widget/desktop_aura/desktop_window_tree_host_x11.cc.gtk2fix chromium-60.0.3112.78/ui/views/widget/desktop_aura/desktop_window_tree_host_x11.cc
--- chromium-60.0.3112.78/ui/views/widget/desktop_aura/desktop_window_tree_host_x11.cc.gtk2fix 2017-08-03 10:50:14.858370042 -0400
+++ chromium-60.0.3112.78/ui/views/widget/desktop_aura/desktop_window_tree_host_x11.cc 2017-08-03 10:52:58.367207187 -0400
@@ -212,13 +212,16 @@ DesktopWindowTreeHostX11::DesktopWindowT
has_pointer_focus_(false),
modal_dialog_counter_(0),
close_widget_factory_(this),
- weak_factory_(this) {}
+ weak_factory_(this) {
+ display::Screen::GetScreen()->AddObserver(this);
+}
DesktopWindowTreeHostX11::~DesktopWindowTreeHostX11() {
window()->ClearProperty(kHostForRootWindow);
aura::client::SetWindowMoveClient(window(), NULL);
desktop_native_widget_aura_->OnDesktopWindowTreeHostDestroyed(this);
DestroyDispatcher();
+ display::Screen::GetScreen()->RemoveObserver(this);
}
// static
@@ -1360,6 +1363,30 @@ void DesktopWindowTreeHostX11::OnCursorV
}
////////////////////////////////////////////////////////////////////////////////
+// DesktopWindowTreeHostX11, display::DisplayObserver implementation:
+
+void DesktopWindowTreeHostX11::OnDisplayAdded(
+ const display::Display& new_display) {}
+
+void DesktopWindowTreeHostX11::OnDisplayRemoved(
+ const display::Display& old_display) {}
+
+void DesktopWindowTreeHostX11::OnDisplayMetricsChanged(
+ const display::Display& display,
+ uint32_t changed_metrics) {
+ if ((changed_metrics & DISPLAY_METRIC_DEVICE_SCALE_FACTOR) &&
+ display::Screen::GetScreen()->GetDisplayNearestWindow(window()).id() ==
+ display.id()) {
+ // When the scale factor changes, also pretend that a resize
+ // occured so that the window layout will be refreshed and a
+ // compositor redraw will be scheduled. This is weird, but works.
+ // TODO(thomasanderson): Figure out a more direct way of doing
+ // this.
+ RestartDelayedResizeTask();
+ }
+}
+
+////////////////////////////////////////////////////////////////////////////////
// DesktopWindowTreeHostX11, private:
void DesktopWindowTreeHostX11::InitX11Window(
@@ -2079,13 +2106,8 @@ uint32_t DesktopWindowTreeHostX11::Dispa
if (origin_changed)
OnHostMovedInPixels(bounds_in_pixels_.origin());
- if (size_changed) {
- delayed_resize_task_.Reset(base::Bind(
- &DesktopWindowTreeHostX11::DelayedResize,
- close_widget_factory_.GetWeakPtr(), bounds_in_pixels.size()));
- base::ThreadTaskRunnerHandle::Get()->PostTask(
- FROM_HERE, delayed_resize_task_.callback());
- }
+ if (size_changed)
+ RestartDelayedResizeTask();
break;
}
case GenericEvent: {
@@ -2358,6 +2380,14 @@ void DesktopWindowTreeHostX11::EnableEve
targeter_for_modal_.reset();
}
+void DesktopWindowTreeHostX11::RestartDelayedResizeTask() {
+ delayed_resize_task_.Reset(
+ base::Bind(&DesktopWindowTreeHostX11::DelayedResize,
+ close_widget_factory_.GetWeakPtr(), bounds_in_pixels_.size()));
+ base::ThreadTaskRunnerHandle::Get()->PostTask(
+ FROM_HERE, delayed_resize_task_.callback());
+}
+
////////////////////////////////////////////////////////////////////////////////
// DesktopWindowTreeHost, public:
diff -up chromium-60.0.3112.78/ui/views/widget/desktop_aura/desktop_window_tree_host_x11.h.gtk2fix chromium-60.0.3112.78/ui/views/widget/desktop_aura/desktop_window_tree_host_x11.h
--- chromium-60.0.3112.78/ui/views/widget/desktop_aura/desktop_window_tree_host_x11.h.gtk2fix 2017-08-03 10:54:34.484348046 -0400
+++ chromium-60.0.3112.78/ui/views/widget/desktop_aura/desktop_window_tree_host_x11.h 2017-08-03 10:54:43.564172318 -0400
@@ -18,6 +18,7 @@
#include "ui/aura/scoped_window_targeter.h"
#include "ui/aura/window_tree_host.h"
#include "ui/base/cursor/cursor_loader_x11.h"
+#include "ui/display/display_observer.h"
#include "ui/events/platform/platform_event_dispatcher.h"
#include "ui/gfx/geometry/insets.h"
#include "ui/gfx/geometry/rect.h"
@@ -45,7 +46,8 @@ class X11DesktopWindowMoveClient;
class VIEWS_EXPORT DesktopWindowTreeHostX11
: public DesktopWindowTreeHost,
public aura::WindowTreeHost,
- public ui::PlatformEventDispatcher {
+ public ui::PlatformEventDispatcher,
+ public display::DisplayObserver {
public:
DesktopWindowTreeHostX11(
internal::NativeWidgetDelegate* native_widget_delegate,
@@ -170,6 +172,12 @@ class VIEWS_EXPORT DesktopWindowTreeHost
const gfx::Point& location_in_pixels) override;
void OnCursorVisibilityChangedNative(bool show) override;
+ // Overridden from display::DisplayObserver:
+ void OnDisplayAdded(const display::Display& new_display) override;
+ void OnDisplayRemoved(const display::Display& old_display) override;
+ void OnDisplayMetricsChanged(const display::Display& display,
+ uint32_t changed_metrics) override;
+
private:
friend class DesktopWindowTreeHostX11HighDPITest;
// Initializes our X11 surface to draw on. This method performs all
@@ -278,6 +286,10 @@ class VIEWS_EXPORT DesktopWindowTreeHost
// Enables event listening after closing |dialog|.
void EnableEventListening();
+ // Removes |delayed_resize_task_| from the task queue (if it's in
+ // the queue) and adds it back at the end of the queue.
+ void RestartDelayedResizeTask();
+
// X11 things
// The display and the native X window hosting the root window.
XDisplay* xdisplay_;
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