Import TestRunner library into chromium.

content/shell/renderer/test_runner/WebTestThemeEngineMock.cpp

+// Copyright 2013 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.
+
+// FIXME: This code is largely cloned from WebTestThemeEngineWin.cpp
+// and WebTestThemeControlWin.cpp. We should delete that code once the
+// cutover to Aura is final.
+
+#include "content/shell/renderer/test_runner/WebTestThemeEngineMock.h"
+
+#include "skia/ext/platform_canvas.h"
+#include "third_party/WebKit/public/platform/WebRect.h"
+#include "third_party/WebKit/public/platform/WebSize.h"
+#include "third_party/skia/include/core/SkRect.h"
+
+using blink::WebCanvas;
+using blink::WebColor;
+using blink::WebRect;
+using blink::WebThemeEngine;
+
+namespace WebTestRunner {
+
+static const SkColor edgeColor     = SK_ColorBLACK;
+static const SkColor readOnlyColor = SkColorSetRGB(0xe9, 0xc2, 0xa6);
+static const SkColor bgColors[]    = {
+    SkColorSetRGB(0xc9, 0xc9, 0xc9), // Disabled
+    SkColorSetRGB(0x43, 0xf9, 0xff), // Hover (Win's "Hot")
+    SkColorSetRGB(0x89, 0xc4, 0xff), // Normal
+    SkColorSetRGB(0xa9, 0xff, 0x12), // Pressed
+    SkColorSetRGB(0x00, 0xf3, 0xac), // Focused
+    SkColorSetRGB(0xf3, 0xe0, 0xd0), // Readonly
+};
+
+
+blink::WebSize WebTestThemeEngineMock::getSize(WebThemeEngine::Part part)
+{
+    // FIXME: We use this constant to indicate we are being asked for the size of
+    // a part that we don't expect to be asked about. We return a garbage value
+    // rather than just asserting because this code doesn't have access to either
+    // WTF or base to raise an assertion or do any logging :(.
+    const blink::WebSize invalidPartSize = blink::WebSize(100, 100);
+
+    switch (part) {
+    case WebThemeEngine::PartScrollbarLeftArrow:
+        return blink::WebSize(17, 15);
+    case WebThemeEngine::PartScrollbarRightArrow:
+        return invalidPartSize;
+    case WebThemeEngine::PartScrollbarUpArrow:
+        return blink::WebSize(15, 17);
+    case WebThemeEngine::PartScrollbarDownArrow:
+        return invalidPartSize;
+    case WebThemeEngine::PartScrollbarHorizontalThumb:
+        return blink::WebSize(15, 15);
+    case WebThemeEngine::PartScrollbarVerticalThumb:
+        return blink::WebSize(15, 15);
+    case WebThemeEngine::PartScrollbarHorizontalTrack:
+        return blink::WebSize(0, 15);
+    case WebThemeEngine::PartScrollbarVerticalTrack:
+        return blink::WebSize(15, 0);
+    case WebThemeEngine::PartCheckbox:
+    case WebThemeEngine::PartRadio:
+        return blink::WebSize(13, 13);
+    case WebThemeEngine::PartSliderThumb:
+        return blink::WebSize(11, 21);
+    case WebThemeEngine::PartInnerSpinButton:
+        return blink::WebSize(15, 8);
+    default:
+        return invalidPartSize;
+    }
+}
+
+static SkIRect webRectToSkIRect(const WebRect& webRect)
+{
+    SkIRect irect;
+    irect.set(webRect.x, webRect.y,
+        webRect.x + webRect.width - 1, webRect.y + webRect.height - 1);
+    return irect;
+}
+
+static SkIRect validate(const SkIRect& rect, WebThemeEngine::Part part)
+{
+    switch (part) {
+    case WebThemeEngine::PartCheckbox:
+    case WebThemeEngine::PartRadio: {
+        SkIRect retval = rect;
+
+        // The maximum width and height is 13.
+        // Center the square in the passed rectangle.
+        const int maxControlSize = 13;
+        int controlSize = std::min(rect.width(), rect.height());
+        controlSize = std::min(controlSize, maxControlSize);
+
+        retval.fLeft   = rect.fLeft + (rect.width() / 2) - (controlSize / 2);
+        retval.fRight  = retval.fLeft + controlSize - 1;
+        retval.fTop    = rect.fTop + (rect.height() / 2) - (controlSize / 2);
+        retval.fBottom = retval.fTop + controlSize - 1;
+
+        return retval;
+    }
+    default:
+        return rect;
+    }
+}
+
+
+void box(SkCanvas *canvas, const SkIRect& rect, SkColor fillColor)
+{
+    SkPaint paint;
+
+    paint.setStyle(SkPaint::kFill_Style);
+    paint.setColor(fillColor);
+    canvas->drawIRect(rect, paint);
+
+    paint.setColor(edgeColor);
+    paint.setStyle(SkPaint::kStroke_Style);
+    canvas->drawIRect(rect, paint);
+}
+
+void line(SkCanvas *canvas, int x0, int y0, int x1, int y1, SkColor color)
+{
+    SkPaint paint;
+    paint.setColor(color);
+    canvas->drawLine(SkIntToScalar(x0), SkIntToScalar(y0),
+        SkIntToScalar(x1), SkIntToScalar(y1), paint);
+}
+
+void triangle(SkCanvas *canvas,
+    int x0, int y0,
+    int x1, int y1,
+    int x2, int y2,
+    SkColor color)
+{
+    SkPath path;
+    SkPaint paint;
+
+    paint.setColor(color);
+    paint.setStyle(SkPaint::kFill_Style);
+    path.incReserve(4);
+    path.moveTo(SkIntToScalar(x0), SkIntToScalar(y0));
+    path.lineTo(SkIntToScalar(x1), SkIntToScalar(y1));
+    path.lineTo(SkIntToScalar(x2), SkIntToScalar(y2));
+    path.close();
+    canvas->drawPath(path, paint);
+
+    paint.setColor(edgeColor);
+    paint.setStyle(SkPaint::kStroke_Style);
+    canvas->drawPath(path, paint);
+}
+
+void roundRect(SkCanvas *canvas, SkIRect irect, SkColor color)
+{
+    SkRect rect;
+    SkScalar radius = SkIntToScalar(5);
+    SkPaint paint;
+
+    rect.set(irect);
+    paint.setColor(color);
+    paint.setStyle(SkPaint::kFill_Style);
+    canvas->drawRoundRect(rect, radius, radius, paint);
+
+    paint.setColor(edgeColor);
+    paint.setStyle(SkPaint::kStroke_Style);
+    canvas->drawRoundRect(rect, radius, radius, paint);
+}
+
+void oval(SkCanvas* canvas, SkIRect irect, SkColor color)
+{
+    SkRect rect;
+    SkPaint paint;
+
+    rect.set(irect);
+    paint.setColor(color);
+    paint.setStyle(SkPaint::kFill_Style);
+    canvas->drawOval(rect, paint);
+
+    paint.setColor(edgeColor);
+    paint.setStyle(SkPaint::kStroke_Style);
+    canvas->drawOval(rect, paint);
+}
+
+void circle(SkCanvas *canvas, SkIRect irect, SkScalar radius, SkColor color)
+{
+    int left = irect.fLeft;
+    int width = irect.width();
+    int height = irect.height();
+    int top = irect.fTop;
+
+    SkScalar cy = SkIntToScalar(top  + height / 2);
+    SkScalar cx = SkIntToScalar(left + width / 2);
+    SkPaint paint;
+
+    paint.setColor(color);
+    paint.setStyle(SkPaint::kFill_Style);
+    canvas->drawCircle(cx, cy, radius, paint);
+
+    paint.setColor(edgeColor);
+    paint.setStyle(SkPaint::kStroke_Style);
+    canvas->drawCircle(cx, cy, radius, paint);
+}
+
+void nestedBoxes(SkCanvas *canvas,
+    SkIRect irect,
+    int indentLeft,
+    int indentTop,
+    int indentRight,
+    int indentBottom,
+    SkColor outerColor,
+    SkColor innerColor)
+{
+    SkIRect lirect;
+    box(canvas, irect, outerColor);
+    lirect.set(irect.fLeft + indentLeft,
+        irect.fTop + indentTop,
+        irect.fRight - indentRight,
+        irect.fBottom - indentBottom);
+    box(canvas, lirect, innerColor);
+}
+
+void markState(SkCanvas *canvas, SkIRect irect, WebThemeEngine::State state)
+{
+    int left = irect.fLeft;
+    int right = irect.fRight;
+    int top = irect.fTop;
+    int bottom = irect.fBottom;
+
+    // The length of a triangle side for the corner marks.
+    const int triangleSize = 5;
+
+    switch (state) {
+    case WebThemeEngine::StateDisabled:
+    case WebThemeEngine::StateNormal:
+        // Don't visually mark these states (color is enough).
+        break;
+
+    case WebThemeEngine::StateReadonly: {
+        // The horizontal lines in a read only control are spaced by this amount.
+        const int readOnlyLineOffset = 5;
+
+        // Drawing lines across the control.
+        for (int i = top + readOnlyLineOffset; i < bottom; i += readOnlyLineOffset)
+            line(canvas, left + 1, i, right - 1, i, readOnlyColor);
+        break;
+    }
+    case WebThemeEngine::StateHover:
+        // Draw a triangle in the upper left corner of the control. (Win's "hot")
+        triangle(canvas,
+            left,                 top,
+            left + triangleSize,  top,
+            left,                 top + triangleSize,
+            edgeColor);
+        break;
+
+    case WebThemeEngine::StateFocused:
+        // Draw a triangle in the bottom right corner of the control.
+        triangle(canvas,
+            right,                bottom,
+            right - triangleSize, bottom,
+            right,                bottom - triangleSize,
+            edgeColor);
+        break;
+
+    case WebThemeEngine::StatePressed:
+        // Draw a triangle in the bottom left corner of the control.
+        triangle(canvas,
+            left,                 bottom,
+            left,                 bottom - triangleSize,
+            left + triangleSize,  bottom,
+            edgeColor);
+        break;
+
+    default:
+        // FIXME: Should we do something here to indicate that we got an invalid state?
+        // Unfortunately, we can't assert because we don't have access to WTF or base.
+        break;
+    }
+}
+
+void WebTestThemeEngineMock::paint(
+    blink::WebCanvas* canvas,
+    WebThemeEngine::Part part,
+    WebThemeEngine::State state,
+    const blink::WebRect& rect,
+    const WebThemeEngine::ExtraParams* extraParams)
+{
+    SkIRect irect = webRectToSkIRect(rect);
+    SkPaint paint;
+
+    // Indent amounts for the check in a checkbox or radio button.
+    const int checkIndent = 3;
+
+    // Indent amounts for short and long sides of the scrollbar notches.
+    const int notchLongOffset = 1;
+    const int notchShortOffset = 4;
+    const int noOffset = 0;
+
+    // Indent amounts for the short and long sides of a scroll thumb box.
+    const int thumbLongIndent = 0;
+    const int thumbShortIndent = 2;
+
+    // Indents for the crosshatch on a scroll grip.
+    const int gripLongIndent = 3;
+    const int gripShortIndent = 5;
+
+    // Indents for the the slider track.
+    const int sliderIndent = 2;
+
+    int halfHeight = irect.height() / 2;
+    int halfWidth = irect.width() / 2;
+    int quarterHeight = irect.height() / 4;
+    int quarterWidth = irect.width() / 4;
+    int left = irect.fLeft;
+    int right = irect.fRight;
+    int top = irect.fTop;
+    int bottom = irect.fBottom;
+
+    switch (part) {
+    case WebThemeEngine::PartScrollbarDownArrow:
+        box(canvas, irect, bgColors[state]);
+        triangle(canvas,
+            left  + quarterWidth, top    + quarterHeight,
+            right - quarterWidth, top    + quarterHeight,
+            left  + halfWidth,    bottom - quarterHeight,
+            edgeColor);
+        markState(canvas, irect, state);
+        break;
+
+    case WebThemeEngine::PartScrollbarLeftArrow:
+        box(canvas, irect, bgColors[state]);
+        triangle(canvas,
+            right - quarterWidth, top    + quarterHeight,
+            right - quarterWidth, bottom - quarterHeight,
+            left  + quarterWidth, top    + halfHeight,
+            edgeColor);
+        break;
+
+    case WebThemeEngine::PartScrollbarRightArrow:
+        box(canvas, irect, bgColors[state]);
+        triangle(canvas,
+            left  + quarterWidth, top    + quarterHeight,
+            right - quarterWidth, top    + halfHeight,
+            left  + quarterWidth, bottom - quarterHeight,
+            edgeColor);
+        break;
+
+    case WebThemeEngine::PartScrollbarUpArrow:
+        box(canvas, irect, bgColors[state]);
+        triangle(canvas,
+            left  + quarterWidth, bottom - quarterHeight,
+            left  + halfWidth,    top    + quarterHeight,
+            right - quarterWidth, bottom - quarterHeight,
+            edgeColor);
+        markState(canvas, irect, state);
+        break;
+
+    case WebThemeEngine::PartScrollbarHorizontalThumb: {
+        // Draw a narrower box on top of the outside box.
+        nestedBoxes(canvas, irect, thumbLongIndent, thumbShortIndent,
+            thumbLongIndent, thumbShortIndent,
+            bgColors[state], bgColors[state]);
+        // Draw a horizontal crosshatch for the grip.
+        int longOffset = halfWidth - gripLongIndent;
+        line(canvas,
+            left  + gripLongIndent, top    + halfHeight,
+            right - gripLongIndent, top    + halfHeight,
+            edgeColor);
+        line(canvas,
+            left  + longOffset,     top    + gripShortIndent,
+            left  + longOffset,     bottom - gripShortIndent,
+            edgeColor);
+        line(canvas,
+            right - longOffset,     top    + gripShortIndent,
+            right - longOffset,     bottom - gripShortIndent,
+            edgeColor);
+        markState(canvas, irect, state);
+        break;
+    }
+
+    case WebThemeEngine::PartScrollbarVerticalThumb: {
+        // Draw a shorter box on top of the outside box.
+        nestedBoxes(canvas, irect, thumbShortIndent, thumbLongIndent,
+            thumbShortIndent, thumbLongIndent,
+            bgColors[state], bgColors[state]);
+        // Draw a vertical crosshatch for the grip.
+        int longOffset = halfHeight - gripLongIndent;
+        line(canvas,
+            left  + halfWidth,       top    + gripLongIndent,
+            left  + halfWidth,       bottom - gripLongIndent,
+            edgeColor);
+        line(canvas,
+            left  + gripShortIndent, top    + longOffset,
+            right - gripShortIndent, top    + longOffset,
+            edgeColor);
+        line(canvas,
+            left  + gripShortIndent, bottom - longOffset,
+            right - gripShortIndent, bottom - longOffset,
+            edgeColor);
+        markState(canvas, irect, state);
+        break;
+    }
+
+    case WebThemeEngine::PartScrollbarHorizontalTrack: {
+        int longOffset = halfHeight - notchLongOffset;
+        int shortOffset = irect.width() - notchShortOffset;
+        if (extraParams->scrollbarTrack.isBack) {
+            // back, notch on left
+            nestedBoxes(canvas, irect, noOffset, longOffset, shortOffset,
+                longOffset, bgColors[state], edgeColor);
+        } else {
+            // forward, notch on right
+            nestedBoxes(canvas, irect, shortOffset, longOffset, noOffset,
+                longOffset, bgColors[state], edgeColor);
+        }
+
+        markState(canvas, irect, state);
+        break;
+    }
+
+    case WebThemeEngine::PartScrollbarVerticalTrack: {
+        int longOffset = halfWidth - notchLongOffset;
+        int shortOffset = irect.height() - notchShortOffset;
+        if (extraParams->scrollbarTrack.isBack) {
+            // back, notch at top
+            nestedBoxes(canvas, irect, longOffset, noOffset, longOffset,
+                shortOffset, bgColors[state], edgeColor);
+        } else {
+            // forward, notch at bottom
+            nestedBoxes(canvas, irect, longOffset, shortOffset, longOffset,
+                noOffset, bgColors[state], edgeColor);
+        }
+
+        markState(canvas, irect, state);
+        break;
+    }
+
+    case WebThemeEngine::PartCheckbox:
+        if (extraParams->button.indeterminate) {
+            nestedBoxes(canvas, irect,
+                checkIndent, halfHeight,
+                checkIndent, halfHeight,
+                bgColors[state], edgeColor);
+        } else if (extraParams->button.checked) {
+            irect = validate(irect, part);
+            nestedBoxes(canvas, irect,
+                checkIndent, checkIndent,
+                checkIndent, checkIndent,
+                bgColors[state], edgeColor);
+        } else {
+            irect = validate(irect, part);
+            box(canvas, irect, bgColors[state]);
+        }
+        break;
+
+    case WebThemeEngine::PartRadio:
+        irect = validate(irect, part);
+        halfHeight = irect.height() / 2;
+        if (extraParams->button.checked) {
+            circle(canvas, irect, SkIntToScalar(halfHeight), bgColors[state]);
+            circle(canvas, irect, SkIntToScalar(halfHeight - checkIndent), edgeColor);
+        } else {
+            circle(canvas, irect, SkIntToScalar(halfHeight), bgColors[state]);
+        }
+        break;
+
+    case WebThemeEngine::PartButton:
+        roundRect(canvas, irect, bgColors[state]);
+        markState(canvas, irect, state);
+        break;
+
+    case WebThemeEngine::PartTextField:
+        paint.setColor(extraParams->textField.backgroundColor);
+        paint.setStyle(SkPaint::kFill_Style);
+        canvas->drawIRect(irect, paint);
+
+        paint.setColor(edgeColor);
+        paint.setStyle(SkPaint::kStroke_Style);
+        canvas->drawIRect(irect, paint);
+
+        markState(canvas, irect, state);
+        break;
+
+    case WebThemeEngine::PartMenuList:
+        if (extraParams->menuList.fillContentArea) {
+            box(canvas, irect, extraParams->menuList.backgroundColor);
+        } else {
+            SkPaint paint;
+            paint.setColor(edgeColor);
+            paint.setStyle(SkPaint::kStroke_Style);
+            canvas->drawIRect(irect, paint);
+        }
+
+        // clip the drop-down arrow to be inside the select box
+        if (extraParams->menuList.arrowX - 4 > irect.fLeft)
+            irect.fLeft = extraParams->menuList.arrowX - 4;
+        if (extraParams->menuList.arrowX + 12 < irect.fRight)
+            irect.fRight = extraParams->menuList.arrowX + 12;
+
+        irect.fTop = extraParams->menuList.arrowY - (extraParams->menuList.arrowHeight) / 2;
+        irect.fBottom = extraParams->menuList.arrowY + (extraParams->menuList.arrowHeight - 1) / 2;
+        halfWidth = irect.width() / 2;
+        quarterWidth = irect.width() / 4;
+
+        if (state == WebThemeEngine::StateFocused) // FIXME: draw differenty?
+            state = WebThemeEngine::StateNormal;
+        box(canvas, irect, bgColors[state]);
+        triangle(canvas,
+            irect.fLeft  + quarterWidth, irect.fTop,
+            irect.fRight - quarterWidth, irect.fTop,
+            irect.fLeft  + halfWidth,    irect.fBottom,
+            edgeColor);
+
+        break;
+
+    case WebThemeEngine::PartSliderTrack: {
+        SkIRect lirect =  irect;
+
+        // Draw a narrow rect for the track plus box hatches on the ends.
+        if (state == WebThemeEngine::StateFocused) // FIXME: draw differently?
+            state = WebThemeEngine::StateNormal;
+        if (extraParams->slider.vertical) {
+            lirect.inset(halfWidth - sliderIndent, noOffset);
+            box(canvas, lirect, bgColors[state]);
+            line(canvas, left, top, right, top, edgeColor);
+            line(canvas, left, bottom, right, bottom, edgeColor);
+        } else {
+            lirect.inset(noOffset, halfHeight - sliderIndent);
+            box(canvas, lirect, bgColors[state]);
+            line(canvas, left, top, left, bottom, edgeColor);
+            line(canvas, right, top, right, bottom, edgeColor);
+        }
+        break;
+    }
+
+    case WebThemeEngine::PartSliderThumb:
+        if (state == WebThemeEngine::StateFocused) // FIXME: draw differently?
+            state = WebThemeEngine::StateNormal;
+        oval(canvas, irect, bgColors[state]);
+        break;
+
+    case WebThemeEngine::PartInnerSpinButton: {
+        // stack half-height up and down arrows on top of each other
+        SkIRect lirect;
+        int halfHeight = rect.height / 2;
+        if (extraParams->innerSpin.readOnly)
+            state = blink::WebThemeEngine::StateDisabled;
+
+        lirect.set(rect.x, rect.y, rect.x + rect.width - 1, rect.y + halfHeight - 1);
+        box(canvas, lirect, bgColors[state]);
+        bottom = lirect.fBottom;
+        quarterHeight = lirect.height() / 4;
+        triangle(canvas,
+            left  + quarterWidth, bottom - quarterHeight,
+            right - quarterWidth, bottom - quarterHeight,
+            left  + halfWidth,    top    + quarterHeight,
+            edgeColor);
+
+        lirect.set(rect.x, rect.y + halfHeight, rect.x + rect.width - 1,
+            rect.y + 2 * halfHeight - 1);
+        top = lirect.fTop;
+        bottom = lirect.fBottom;
+        quarterHeight = lirect.height() / 4;
+        box(canvas, lirect, bgColors[state]);
+        triangle(canvas,
+            left  + quarterWidth, top    + quarterHeight,
+            right - quarterWidth, top    + quarterHeight,
+            left  + halfWidth,    bottom - quarterHeight,
+            edgeColor);
+        markState(canvas, irect, state);
+        break;
+    }
+    case WebThemeEngine::PartProgressBar: {
+        paint.setColor(bgColors[state]);
+        paint.setStyle(SkPaint::kFill_Style);
+        canvas->drawIRect(irect, paint);
+
+        // Emulate clipping
+        SkIRect tofill = irect;
+        if (extraParams->progressBar.determinate) {
+            tofill.set(extraParams->progressBar.valueRectX,
+                extraParams->progressBar.valueRectY,
+                extraParams->progressBar.valueRectX +
+                extraParams->progressBar.valueRectWidth - 1,
+                extraParams->progressBar.valueRectY +
+                extraParams->progressBar.valueRectHeight);
+        }
+
+        tofill.intersect(irect, tofill);
+        paint.setColor(edgeColor);
+        paint.setStyle(SkPaint::kFill_Style);
+        canvas->drawIRect(tofill, paint);
+
+        markState(canvas, irect, state);
+        break;
+    }
+    default:
+        // FIXME: Should we do something here to indicate that we got an invalid part?
+        // Unfortunately, we can't assert because we don't have access to WTF or base.
+        break;
+    }
+}
+
+} // namespace WebTestRunner