138 lines
3.7 KiB
Text
138 lines
3.7 KiB
Text
// Copyright (c) 2021 Microsoft, Inc.
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// Use of this source code is governed by the MIT license that can be
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// found in the LICENSE file.
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#include "shell/browser/ui/cocoa/window_buttons_view.h"
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#include "base/cxx17_backports.h"
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#include "base/i18n/rtl.h"
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#include "base/logging.h"
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#include "ui/gfx/mac/coordinate_conversion.h"
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namespace {
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const CGFloat kButtonPadding = 20.;
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const NSWindowButton kButtonTypes[] = {
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NSWindowCloseButton,
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NSWindowMiniaturizeButton,
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NSWindowZoomButton,
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};
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} // namespace
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@implementation WindowButtonsView
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+ (gfx::Point)defaultMargin {
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if (@available(macOS 11.0, *)) {
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return gfx::Point(7, 6);
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} else {
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return gfx::Point(7, 3);
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}
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}
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+ (gfx::Point)hiddenInsetMargin {
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// For macOS >= 11, while this value does not match offical macOS apps like
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// Safari or Notes, it matches titleBarStyle's old implementation before
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// Electron <= 12.
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return gfx::Point(12, 11);
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}
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- (id)initWithMargin:(const absl::optional<gfx::Point>&)margin {
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self = [super initWithFrame:NSZeroRect];
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[self setMargin:margin];
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mouse_inside_ = false;
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show_on_hover_ = false;
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is_rtl_ = base::i18n::IsRTL();
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for (size_t i = 0; i < base::size(kButtonTypes); ++i) {
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NSButton* button = [NSWindow standardWindowButton:kButtonTypes[i]
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forStyleMask:NSWindowStyleMaskTitled];
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[button setTag:i];
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int left_index = is_rtl_ ? base::size(kButtonTypes) - i - 1 : i;
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[button setFrameOrigin:NSMakePoint(left_index * kButtonPadding, 0)];
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[self addSubview:button];
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}
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NSView* last_button =
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is_rtl_ ? [[self subviews] firstObject] : [[self subviews] lastObject];
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[self setFrameSize:NSMakeSize(last_button.frame.origin.x +
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last_button.frame.size.width,
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last_button.frame.size.height)];
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[self setNeedsDisplayForButtons];
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return self;
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}
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- (void)setMargin:(const absl::optional<gfx::Point>&)margin {
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margin_ = margin.value_or([WindowButtonsView defaultMargin]);
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}
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- (void)setShowOnHover:(BOOL)yes {
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show_on_hover_ = yes;
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[self setNeedsDisplayForButtons];
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}
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- (void)setNeedsDisplayForButtons {
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for (NSView* subview in self.subviews) {
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[subview setHidden:(show_on_hover_ && !mouse_inside_)];
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[subview setNeedsDisplay:YES];
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}
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}
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- (void)removeFromSuperview {
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[super removeFromSuperview];
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mouse_inside_ = NO;
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}
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- (void)viewDidMoveToWindow {
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// Stay in upper left corner.
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CGFloat y =
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self.superview.frame.size.height - self.frame.size.height - margin_.y();
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if (is_rtl_) {
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CGFloat x =
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self.superview.frame.size.width - self.frame.size.width - margin_.x();
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[self setAutoresizingMask:NSViewMinXMargin | NSViewMinYMargin];
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[self setFrameOrigin:NSMakePoint(x, y)];
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} else {
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[self setAutoresizingMask:NSViewMaxXMargin | NSViewMinYMargin];
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[self setFrameOrigin:NSMakePoint(margin_.x(), y)];
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}
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}
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- (BOOL)_mouseInGroup:(NSButton*)button {
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return mouse_inside_;
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}
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- (void)updateTrackingAreas {
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[super updateTrackingAreas];
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if (tracking_area_)
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[self removeTrackingArea:tracking_area_.get()];
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tracking_area_.reset([[NSTrackingArea alloc]
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initWithRect:NSZeroRect
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options:NSTrackingMouseEnteredAndExited | NSTrackingActiveAlways |
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NSTrackingInVisibleRect
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owner:self
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userInfo:nil]);
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[self addTrackingArea:tracking_area_.get()];
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}
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- (void)mouseEntered:(NSEvent*)event {
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[super mouseEntered:event];
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mouse_inside_ = YES;
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[self setNeedsDisplayForButtons];
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}
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- (void)mouseExited:(NSEvent*)event {
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[super mouseExited:event];
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mouse_inside_ = NO;
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[self setNeedsDisplayForButtons];
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}
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- (gfx::Point)getMargin {
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return margin_;
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}
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@end
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