1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/layout/inspector/inFlasher.cpp Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,206 @@
1.4 +/* This Source Code Form is subject to the terms of the Mozilla Public
1.5 + * License, v. 2.0. If a copy of the MPL was not distributed with this
1.6 + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
1.7 +
1.8 +#include "inFlasher.h"
1.9 +#include "inLayoutUtils.h"
1.10 +
1.11 +#include "nsIDOMElement.h"
1.12 +#include "nsIServiceManager.h"
1.13 +#include "nsIPresShell.h"
1.14 +#include "nsIFrame.h"
1.15 +#include "nsIWidget.h"
1.16 +#include "nsReadableUtils.h"
1.17 +#include "nsRenderingContext.h"
1.18 +#include "nsIDOMWindow.h"
1.19 +#include "nsIContent.h"
1.20 +
1.21 +#include "prprf.h"
1.22 +
1.23 +///////////////////////////////////////////////////////////////////////////////
1.24 +
1.25 +inFlasher::inFlasher() :
1.26 + mColor(NS_RGB(0,0,0)),
1.27 + mThickness(0),
1.28 + mInvert(false)
1.29 +{
1.30 +}
1.31 +
1.32 +inFlasher::~inFlasher()
1.33 +{
1.34 +}
1.35 +
1.36 +NS_IMPL_ISUPPORTS(inFlasher, inIFlasher)
1.37 +
1.38 +///////////////////////////////////////////////////////////////////////////////
1.39 +// inIFlasher
1.40 +
1.41 +NS_IMETHODIMP
1.42 +inFlasher::GetColor(nsAString& aColor)
1.43 +{
1.44 + // Copied from nsGenericHTMLElement::ColorToString()
1.45 + char buf[10];
1.46 + PR_snprintf(buf, sizeof(buf), "#%02x%02x%02x",
1.47 + NS_GET_R(mColor), NS_GET_G(mColor), NS_GET_B(mColor));
1.48 + CopyASCIItoUTF16(buf, aColor);
1.49 +
1.50 + return NS_OK;
1.51 +}
1.52 +
1.53 +NS_IMETHODIMP
1.54 +inFlasher::SetColor(const nsAString& aColor)
1.55 +{
1.56 + NS_ENSURE_FALSE(aColor.IsEmpty(), NS_ERROR_ILLEGAL_VALUE);
1.57 +
1.58 + nsAutoString colorStr;
1.59 + colorStr.Assign(aColor);
1.60 +
1.61 + if (colorStr.CharAt(0) != '#') {
1.62 + if (NS_ColorNameToRGB(colorStr, &mColor)) {
1.63 + return NS_OK;
1.64 + }
1.65 + }
1.66 + else {
1.67 + colorStr.Cut(0, 1);
1.68 + if (NS_HexToRGB(colorStr, &mColor)) {
1.69 + return NS_OK;
1.70 + }
1.71 + }
1.72 +
1.73 + return NS_ERROR_ILLEGAL_VALUE;
1.74 +}
1.75 +
1.76 +NS_IMETHODIMP
1.77 +inFlasher::GetThickness(uint16_t *aThickness)
1.78 +{
1.79 + NS_PRECONDITION(aThickness, "Null pointer");
1.80 + *aThickness = mThickness;
1.81 + return NS_OK;
1.82 +}
1.83 +
1.84 +NS_IMETHODIMP
1.85 +inFlasher::SetThickness(uint16_t aThickness)
1.86 +{
1.87 + mThickness = aThickness;
1.88 + return NS_OK;
1.89 +}
1.90 +
1.91 +NS_IMETHODIMP
1.92 +inFlasher::GetInvert(bool *aInvert)
1.93 +{
1.94 + NS_PRECONDITION(aInvert, "Null pointer");
1.95 + *aInvert = mInvert;
1.96 + return NS_OK;
1.97 +}
1.98 +
1.99 +NS_IMETHODIMP
1.100 +inFlasher::SetInvert(bool aInvert)
1.101 +{
1.102 + mInvert = aInvert;
1.103 + return NS_OK;
1.104 +}
1.105 +
1.106 +NS_IMETHODIMP
1.107 +inFlasher::RepaintElement(nsIDOMElement* aElement)
1.108 +{
1.109 + NS_ENSURE_ARG_POINTER(aElement);
1.110 + nsIFrame* frame = inLayoutUtils::GetFrameFor(aElement);
1.111 + if (!frame) return NS_OK;
1.112 +
1.113 + frame->InvalidateFrame();
1.114 +
1.115 + return NS_OK;
1.116 +}
1.117 +
1.118 +NS_IMETHODIMP
1.119 +inFlasher::DrawElementOutline(nsIDOMElement* aElement)
1.120 +{
1.121 + NS_ENSURE_ARG_POINTER(aElement);
1.122 + nsCOMPtr<nsIDOMWindow> window = inLayoutUtils::GetWindowFor(aElement);
1.123 + if (!window) return NS_OK;
1.124 + nsCOMPtr<nsIPresShell> presShell = inLayoutUtils::GetPresShellFor(window);
1.125 + if (!presShell) return NS_OK;
1.126 +
1.127 + nsIFrame* frame = inLayoutUtils::GetFrameFor(aElement);
1.128 +
1.129 + bool isFirstFrame = true;
1.130 +
1.131 + while (frame) {
1.132 + nsPoint offset;
1.133 + nsIWidget* widget = frame->GetNearestWidget(offset);
1.134 + if (widget) {
1.135 + nsRefPtr<nsRenderingContext> rcontext = new nsRenderingContext();
1.136 + rcontext->Init(frame->PresContext()->DeviceContext(),
1.137 + widget->GetThebesSurface());
1.138 +
1.139 + nsRect rect(offset, frame->GetSize());
1.140 + if (mInvert) {
1.141 + rcontext->InvertRect(rect);
1.142 + }
1.143 +
1.144 + bool isLastFrame = frame->GetNextContinuation() == nullptr;
1.145 + DrawOutline(rect.x, rect.y, rect.width, rect.height, rcontext,
1.146 + isFirstFrame, isLastFrame);
1.147 + isFirstFrame = false;
1.148 + }
1.149 + frame = frame->GetNextContinuation();
1.150 + }
1.151 +
1.152 + return NS_OK;
1.153 +}
1.154 +
1.155 +NS_IMETHODIMP
1.156 +inFlasher::ScrollElementIntoView(nsIDOMElement *aElement)
1.157 +{
1.158 + NS_ENSURE_ARG_POINTER(aElement);
1.159 + nsCOMPtr<nsIDOMWindow> window = inLayoutUtils::GetWindowFor(aElement);
1.160 + if (!window) {
1.161 + return NS_OK;
1.162 + }
1.163 +
1.164 + nsCOMPtr<nsIPresShell> presShell = inLayoutUtils::GetPresShellFor(window);
1.165 + if (!presShell) {
1.166 + return NS_OK;
1.167 + }
1.168 +
1.169 + nsCOMPtr<nsIContent> content = do_QueryInterface(aElement);
1.170 + presShell->ScrollContentIntoView(content,
1.171 + nsIPresShell::ScrollAxis(),
1.172 + nsIPresShell::ScrollAxis(),
1.173 + nsIPresShell::SCROLL_OVERFLOW_HIDDEN);
1.174 +
1.175 + return NS_OK;
1.176 +}
1.177 +
1.178 +///////////////////////////////////////////////////////////////////////////////
1.179 +// inFlasher
1.180 +
1.181 +void
1.182 +inFlasher::DrawOutline(nscoord aX, nscoord aY, nscoord aWidth, nscoord aHeight,
1.183 + nsRenderingContext* aRenderContext,
1.184 + bool aDrawBegin, bool aDrawEnd)
1.185 +{
1.186 + aRenderContext->SetColor(mColor);
1.187 +
1.188 + DrawLine(aX, aY, aWidth, DIR_HORIZONTAL, BOUND_OUTER, aRenderContext);
1.189 + if (aDrawBegin) {
1.190 + DrawLine(aX, aY, aHeight, DIR_VERTICAL, BOUND_OUTER, aRenderContext);
1.191 + }
1.192 + DrawLine(aX, aY+aHeight, aWidth, DIR_HORIZONTAL, BOUND_INNER, aRenderContext);
1.193 + if (aDrawEnd) {
1.194 + DrawLine(aX+aWidth, aY, aHeight, DIR_VERTICAL, BOUND_INNER, aRenderContext);
1.195 + }
1.196 +}
1.197 +
1.198 +void
1.199 +inFlasher::DrawLine(nscoord aX, nscoord aY, nscoord aLength,
1.200 + bool aDir, bool aBounds,
1.201 + nsRenderingContext* aRenderContext)
1.202 +{
1.203 + nscoord thickTwips = nsPresContext::CSSPixelsToAppUnits(mThickness);
1.204 + if (aDir) { // horizontal
1.205 + aRenderContext->FillRect(aX, aY+(aBounds?0:-thickTwips), aLength, thickTwips);
1.206 + } else { // vertical
1.207 + aRenderContext->FillRect(aX+(aBounds?0:-thickTwips), aY, thickTwips, aLength);
1.208 + }
1.209 +}
