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// Copyright 2025 The Chromium Authors
// 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/frame/multi_contents_view_delegate.h"
#include "chrome/browser/ui/tabs/tab_strip_model.h"
#include "chrome/browser/ui/tabs/tab_strip_model_delegate.h"
#include "chrome/browser/ui/views/frame/multi_contents_drop_target_view.h"
MultiContentsViewDelegateImpl::MultiContentsViewDelegateImpl(
TabStripModel& tab_strip_model)
: tab_strip_model_(tab_strip_model) {}
void MultiContentsViewDelegateImpl::WebContentsFocused(
content::WebContents* web_contents) {
int tab_index = tab_strip_model_->GetIndexOfWebContents(web_contents);
if (tab_index != TabStripModel::kNoTab) {
tab_strip_model_->ActivateTabAt(tab_index);
}
}
void MultiContentsViewDelegateImpl::ReverseWebContents() {
const int active_index = tab_strip_model_->active_index();
const std::optional<split_tabs::SplitTabId> split_tab_id =
tab_strip_model_->GetTabAtIndex(active_index)->GetSplit();
CHECK(split_tab_id.has_value());
tab_strip_model_->ReverseTabsInSplit(split_tab_id.value());
}
void MultiContentsViewDelegateImpl::ResizeWebContents(double start_ratio) {
const std::optional<split_tabs::SplitTabId> split_tab_id =
tab_strip_model_->GetActiveTab()->GetSplit();
CHECK(split_tab_id.has_value());
tab_strip_model_->UpdateSplitRatio(split_tab_id.value(), start_ratio);
}
void MultiContentsViewDelegateImpl::HandleLinkDrop(
MultiContentsDropTargetView::DropSide side,
const std::vector<GURL>& urls) {
CHECK(!urls.empty());
CHECK(!tab_strip_model_->GetActiveTab()->IsSplit());
// Insert the tab before or after the active tab, according to the drop side.
const int new_tab_idx =
tab_strip_model_->active_index() +
(side == MultiContentsDropTargetView::DropSide::START ? 0 : 1);
// TODO(crbug.com/406792273): Support entrypoint for vertical splits.
const split_tabs::SplitTabVisualData split_data(
split_tabs::SplitTabLayout::kVertical);
// We currently only support creating a split with one link; i.e., the first
// link in the provided list.
tab_strip_model_->delegate()->AddTabAt(urls.front(), new_tab_idx, false);
tab_strip_model_->AddToNewSplit({new_tab_idx}, split_data);
}
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