mirror of
https://github.com/mozilla/gecko-dev.git
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121 lines
3.3 KiB
C++
121 lines
3.3 KiB
C++
/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#include "DimensionRequest.h"
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#include "nsIBaseWindow.h"
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#include "nsIDocShellTreeOwner.h"
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#include "mozilla/Try.h"
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namespace mozilla {
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nsresult DimensionRequest::SupplementFrom(nsIBaseWindow* aSource) {
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NS_ENSURE_ARG_POINTER(aSource);
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int32_t x = 0, y = 0, width = 0, height = 0;
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bool needsPosition = mX.isSome() != mY.isSome();
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bool needsSize = mWidth.isSome() != mHeight.isSome();
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if (!needsPosition && !needsSize) {
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return NS_OK;
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}
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MOZ_TRY(aSource->GetDimensions(mDimensionKind, needsPosition ? &x : nullptr,
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needsPosition ? &y : nullptr,
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needsSize ? &width : nullptr,
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needsSize ? &height : nullptr));
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if (needsPosition) {
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if (mX.isNothing()) {
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mX.emplace(x);
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}
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if (mY.isNothing()) {
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mY.emplace(y);
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}
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}
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if (needsSize) {
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if (mWidth.isNothing()) {
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mWidth.emplace(width);
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}
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if (mHeight.isNothing()) {
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mHeight.emplace(height);
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}
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}
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MOZ_ASSERT(mX.isSome() == mY.isSome());
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MOZ_ASSERT(mWidth.isSome() == mHeight.isSome());
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return NS_OK;
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}
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nsresult DimensionRequest::ApplyOuterTo(nsIBaseWindow* aTarget) {
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NS_ENSURE_ARG_POINTER(aTarget);
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MOZ_ASSERT(mX.isSome() == mY.isSome(),
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"Missing dimensions should have been completed.");
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MOZ_ASSERT(mWidth.isSome() == mHeight.isSome(),
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"Missing dimensions should have been completed.");
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if (mDimensionKind != DimensionKind::Outer) {
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MOZ_ASSERT_UNREACHABLE("Expected outer dimensions.");
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return NS_ERROR_UNEXPECTED;
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}
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bool havePosition = mX.isSome() && mY.isSome();
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bool haveSize = mWidth.isSome() && mHeight.isSome();
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if (!havePosition && !haveSize) {
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return NS_OK;
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}
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if (havePosition && haveSize) {
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return aTarget->SetPositionAndSize(*mX, *mY, *mWidth, *mHeight, true);
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}
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if (havePosition) {
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return aTarget->SetPosition(*mX, *mY);
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}
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if (haveSize) {
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return aTarget->SetSize(*mWidth, *mHeight, true);
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}
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MOZ_ASSERT_UNREACHABLE();
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return NS_ERROR_UNEXPECTED;
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}
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nsresult DimensionRequest::ApplyInnerTo(nsIDocShellTreeOwner* aTarget,
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bool aAsRootShell) {
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NS_ENSURE_ARG_POINTER(aTarget);
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MOZ_ASSERT(mX.isSome() == mY.isSome(),
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"Missing dimensions should have been completed.");
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MOZ_ASSERT(mWidth.isSome() == mHeight.isSome(),
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"Missing dimensions should have been completed.");
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if (mDimensionKind != DimensionKind::Inner) {
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MOZ_ASSERT_UNREACHABLE("Expected inner dimensions.");
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return NS_ERROR_UNEXPECTED;
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}
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bool havePosition = mX.isSome() && mY.isSome();
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bool haveSize = mWidth.isSome() && mHeight.isSome();
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if (!havePosition && !haveSize) {
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return NS_OK;
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}
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if (havePosition) {
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MOZ_ASSERT_UNREACHABLE("Inner position is not implemented.");
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return NS_ERROR_NOT_IMPLEMENTED;
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}
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if (haveSize) {
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if (aAsRootShell) {
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return aTarget->SetRootShellSize(*mWidth, *mHeight);
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}
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return aTarget->SetPrimaryContentSize(*mWidth, *mHeight);
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}
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MOZ_ASSERT_UNREACHABLE();
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return NS_ERROR_UNEXPECTED;
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}
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} // namespace mozilla
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