| // 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. |
| |
| #include "chrome/browser/ui/views/chrome_layout_provider.h" |
| |
| #include <algorithm> |
| |
| #include "base/logging.h" |
| #include "chrome/browser/ui/views/chrome_typography.h" |
| #include "chrome/browser/ui/views/material_refresh_layout_provider.h" |
| #include "ui/base/material_design/material_design_controller.h" |
| |
| namespace { |
| |
| // TODO(pbos): Inline kHarmonyLayoutUnit calculations below as it's not really |
| // respected (there's 3 * unit / 4 in use to express 12). |
| // The Harmony layout unit. All distances are in terms of this unit. |
| constexpr int kHarmonyLayoutUnit = 16; |
| constexpr int kSmallSnapPoint = 320; |
| constexpr int kMediumSnapPoint = 448; |
| constexpr int kLargeSnapPoint = 512; |
| |
| ChromeLayoutProvider* g_chrome_layout_provider = nullptr; |
| |
| } // namespace |
| |
| ChromeLayoutProvider::ChromeLayoutProvider() { |
| DCHECK_EQ(nullptr, g_chrome_layout_provider); |
| g_chrome_layout_provider = this; |
| } |
| |
| ChromeLayoutProvider::~ChromeLayoutProvider() { |
| DCHECK_EQ(this, g_chrome_layout_provider); |
| g_chrome_layout_provider = nullptr; |
| } |
| |
| // static |
| ChromeLayoutProvider* ChromeLayoutProvider::Get() { |
| // Check to avoid downcasting a base LayoutProvider. |
| DCHECK_EQ(g_chrome_layout_provider, views::LayoutProvider::Get()); |
| return static_cast<ChromeLayoutProvider*>(views::LayoutProvider::Get()); |
| } |
| |
| // static |
| std::unique_ptr<views::LayoutProvider> |
| ChromeLayoutProvider::CreateLayoutProvider() { |
| return std::make_unique<MaterialRefreshLayoutProvider>(); |
| } |
| |
| gfx::Insets ChromeLayoutProvider::GetInsetsMetric(int metric) const { |
| DCHECK_LT(metric, views::VIEWS_INSETS_MAX); |
| const bool touch_ui = ui::MaterialDesignController::touch_ui(); |
| switch (metric) { |
| case views::INSETS_DIALOG: |
| case views::INSETS_DIALOG_SUBSECTION: |
| return gfx::Insets(kHarmonyLayoutUnit); |
| case views::INSETS_CHECKBOX_RADIO_BUTTON: { |
| gfx::Insets insets = LayoutProvider::GetInsetsMetric(metric); |
| // Material Design requires that checkboxes and radio buttons are aligned |
| // flush to the left edge. |
| return gfx::Insets(insets.top(), 0, insets.bottom(), insets.right()); |
| } |
| case views::INSETS_VECTOR_IMAGE_BUTTON: |
| return gfx::Insets(kHarmonyLayoutUnit / 4); |
| case views::InsetsMetric::INSETS_LABEL_BUTTON: |
| return touch_ui |
| ? gfx::Insets(kHarmonyLayoutUnit / 2, kHarmonyLayoutUnit / 2) |
| : LayoutProvider::GetInsetsMetric(metric); |
| case INSETS_BOOKMARKS_BAR_BUTTON: |
| return touch_ui ? gfx::Insets(8, 12) : gfx::Insets(6); |
| case INSETS_TOAST: |
| return gfx::Insets(0, kHarmonyLayoutUnit); |
| default: |
| return LayoutProvider::GetInsetsMetric(metric); |
| } |
| } |
| int ChromeLayoutProvider::GetDistanceMetric(int metric) const { |
| DCHECK_GE(metric, views::VIEWS_INSETS_MAX); |
| switch (metric) { |
| case DISTANCE_CONTENT_LIST_VERTICAL_SINGLE: |
| return kHarmonyLayoutUnit / 4; |
| case DISTANCE_CONTENT_LIST_VERTICAL_MULTI: |
| return kHarmonyLayoutUnit / 2; |
| case DISTANCE_CONTROL_LIST_VERTICAL: |
| return kHarmonyLayoutUnit * 3 / 4; |
| case views::DISTANCE_CLOSE_BUTTON_MARGIN: { |
| constexpr int kVisibleMargin = kHarmonyLayoutUnit / 2; |
| // The visible margin is based on the unpadded size, so to get the actual |
| // margin we need to subtract out the padding. |
| return kVisibleMargin - kHarmonyLayoutUnit / 4; |
| } |
| case views::DISTANCE_CONTROL_VERTICAL_TEXT_PADDING: |
| return kHarmonyLayoutUnit / 4; |
| case views::DISTANCE_DIALOG_CONTENT_MARGIN_BOTTOM_CONTROL: |
| return kHarmonyLayoutUnit * 3 / 2; |
| case views::DISTANCE_DIALOG_CONTENT_MARGIN_BOTTOM_TEXT: { |
| // This is reduced so there is about the same amount of visible |
| // whitespace, compensating for the text's internal leading. |
| return GetDistanceMetric( |
| views::DISTANCE_DIALOG_CONTENT_MARGIN_BOTTOM_CONTROL) - |
| 8; |
| } |
| case views::DISTANCE_DIALOG_CONTENT_MARGIN_TOP_CONTROL: |
| return kHarmonyLayoutUnit; |
| case views::DISTANCE_DIALOG_CONTENT_MARGIN_TOP_TEXT: { |
| // See the comment in DISTANCE_DIALOG_CONTENT_MARGIN_BOTTOM_TEXT above. |
| return GetDistanceMetric( |
| views::DISTANCE_DIALOG_CONTENT_MARGIN_TOP_CONTROL) - |
| 8; |
| } |
| case DISTANCE_DROPDOWN_BUTTON_LABEL_ARROW_SPACING: |
| return 8; |
| case DISTANCE_DROPDOWN_BUTTON_RIGHT_MARGIN: |
| return 12; |
| case views::DISTANCE_RELATED_BUTTON_HORIZONTAL: |
| return kHarmonyLayoutUnit / 2; |
| case views::DISTANCE_RELATED_CONTROL_HORIZONTAL: |
| return kHarmonyLayoutUnit; |
| case DISTANCE_RELATED_CONTROL_HORIZONTAL_SMALL: |
| return kHarmonyLayoutUnit; |
| case views::DISTANCE_RELATED_CONTROL_VERTICAL: |
| return kHarmonyLayoutUnit / 2; |
| case DISTANCE_RELATED_CONTROL_VERTICAL_SMALL: |
| return kHarmonyLayoutUnit / 2; |
| case views::DISTANCE_DIALOG_BUTTON_MINIMUM_WIDTH: |
| case DISTANCE_BUTTON_MINIMUM_WIDTH: |
| // Minimum label size plus padding. |
| return 2 * kHarmonyLayoutUnit + |
| 2 * GetDistanceMetric(views::DISTANCE_BUTTON_HORIZONTAL_PADDING); |
| case views::DISTANCE_BUTTON_HORIZONTAL_PADDING: |
| return kHarmonyLayoutUnit; |
| case views::DISTANCE_BUTTON_MAX_LINKABLE_WIDTH: |
| return kHarmonyLayoutUnit * 7; |
| case views::DISTANCE_RELATED_LABEL_HORIZONTAL: |
| case views::DISTANCE_TABLE_CELL_HORIZONTAL_MARGIN: |
| return 3 * kHarmonyLayoutUnit / 4; |
| case DISTANCE_RELATED_LABEL_HORIZONTAL_LIST: |
| return kHarmonyLayoutUnit / 2; |
| case views::DISTANCE_DIALOG_SCROLLABLE_AREA_MAX_HEIGHT: |
| return kHarmonyLayoutUnit * 12; |
| case DISTANCE_SUBSECTION_HORIZONTAL_INDENT: |
| return 0; |
| case DISTANCE_TOAST_CONTROL_VERTICAL: |
| return 8; |
| case DISTANCE_TOAST_LABEL_VERTICAL: |
| return 12; |
| case views::DISTANCE_TEXTFIELD_HORIZONTAL_TEXT_PADDING: |
| return kHarmonyLayoutUnit / 2; |
| case DISTANCE_UNRELATED_CONTROL_HORIZONTAL: |
| return kHarmonyLayoutUnit; |
| case DISTANCE_UNRELATED_CONTROL_HORIZONTAL_LARGE: |
| return kHarmonyLayoutUnit; |
| case views::DISTANCE_UNRELATED_CONTROL_VERTICAL: |
| return kHarmonyLayoutUnit; |
| case DISTANCE_UNRELATED_CONTROL_VERTICAL_LARGE: |
| return kHarmonyLayoutUnit; |
| case DISTANCE_BUBBLE_PREFERRED_WIDTH: |
| return kSmallSnapPoint; |
| case DISTANCE_MODAL_DIALOG_PREFERRED_WIDTH: |
| return kMediumSnapPoint; |
| case DISTANCE_LARGE_MODAL_DIALOG_PREFERRED_WIDTH: |
| return kLargeSnapPoint; |
| default: |
| return LayoutProvider::GetDistanceMetric(metric); |
| } |
| } |
| |
| int ChromeLayoutProvider::GetSnappedDialogWidth(int min_width) const { |
| for (int snap_point : {kSmallSnapPoint, kMediumSnapPoint, kLargeSnapPoint}) { |
| if (min_width <= snap_point) |
| return snap_point; |
| } |
| |
| return ((min_width + kHarmonyLayoutUnit - 1) / kHarmonyLayoutUnit) * |
| kHarmonyLayoutUnit; |
| } |
| |
| const views::TypographyProvider& ChromeLayoutProvider::GetTypographyProvider() |
| const { |
| return typography_provider_; |
| } |
| |
| views::GridLayout::Alignment |
| ChromeLayoutProvider::GetControlLabelGridAlignment() const { |
| return views::GridLayout::LEADING; |
| } |
| |
| bool ChromeLayoutProvider::ShouldShowWindowIcon() const { |
| return false; |
| } |