1 files changed, 249 insertions, 0 deletions
diff --git a/chrome/browser/geolocation/geolocation_exceptions_table_model.cc b/chrome/browser/geolocation/geolocation_exceptions_table_model.cc
new file mode 100644
index 0000000..95d2e79
--- /dev/null
+++ b/chrome/browser/geolocation/geolocation_exceptions_table_model.cc
@@ -0,0 +1,249 @@
+// Copyright (c) 2010 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/geolocation/geolocation_exceptions_table_model.h"
+
+#include "app/l10n_util.h"
+#include "app/l10n_util_collator.h"
+#include "app/table_model_observer.h"
+#include "base/utf_string_conversions.h"
+#include "chrome/common/url_constants.h"
+#include "grit/generated_resources.h"
+
+namespace {
+// Return -1, 0, or 1 depending on whether |origin1| should be sorted before,
+// equal to, or after |origin2|.
+int CompareOrigins(const GURL& origin1, const GURL& origin2) {
+  if (origin1 == origin2)
+    return 0;
+
+  // Sort alphabetically by host name.
+  std::string origin1_host(origin1.host());
+  std::string origin2_host(origin2.host());
+  if (origin1_host != origin2_host)
+    return origin1_host < origin2_host ? -1 : 1;
+
+  // We'll show non-HTTP schemes, so sort them alphabetically, but put HTTP
+  // first.
+  std::string origin1_scheme(origin1.scheme());
+  std::string origin2_scheme(origin2.scheme());
+  if (origin1_scheme != origin2_scheme) {
+    if (origin1_scheme == chrome::kHttpScheme)
+      return -1;
+    if (origin2_scheme == chrome::kHttpScheme)
+      return 1;
+    return origin1_scheme < origin2_scheme ? -1 : 1;
+  }
+
+  // Sort by port number.  This has to differ if the origins are really origins
+  // (and not longer URLs).  An unspecified port will be -1 and thus
+  // automatically come first (which is what we want).
+  int origin1_port = origin1.IntPort();
+  int origin2_port = origin2.IntPort();
+  DCHECK(origin1_port != origin2_port);
+  return origin1_port < origin2_port ? -1 : 1;
+}
+}  // namespace
+
+GeolocationExceptionsTableModel::GeolocationExceptionsTableModel(
+    GeolocationContentSettingsMap* map)
+    : map_(map),
+      observer_(NULL) {
+  GeolocationContentSettingsMap::AllOriginsSettings settings(
+      map_->GetAllOriginsSettings());
+  GeolocationContentSettingsMap::AllOriginsSettings::const_iterator i;
+  for (i = settings.begin(); i != settings.end(); ++i)
+    AddEntriesForOrigin(i->first, i->second);
+}
+
+bool GeolocationExceptionsTableModel::CanRemoveExceptions(
+    const Rows& rows) const {
+  for (Rows::const_iterator i(rows.begin()); i != rows.end(); ++i) {
+    const Entry& entry = entries_[*i];
+    if ((entry.origin == entry.embedding_origin) &&
+        (entry.setting == CONTENT_SETTING_DEFAULT)) {
+      for (size_t j = (*i) + 1;
+           (j < entries_.size()) && (entries_[j].origin == entry.origin); ++j) {
+        if (!rows.count(j))
+          return false;
+      }
+    }
+  }
+  return !rows.empty();
+}
+
+void GeolocationExceptionsTableModel::RemoveExceptions(const Rows& rows) {
+  for (Rows::const_reverse_iterator i(rows.rbegin()); i != rows.rend(); ++i) {
+    size_t row = *i;
+    Entry* entry = &entries_[row];
+    GURL entry_origin(entry->origin);  // Copy, not reference, since we'll erase
+                                       // |entry| before we're done with this.
+    bool next_has_same_origin = ((row + 1) < entries_.size()) &&
+        (entries_[row + 1].origin == entry_origin);
+    bool has_children = (entry_origin == entry->embedding_origin) &&
+        next_has_same_origin;
+    map_->SetContentSetting(entry_origin, entry->embedding_origin,
+                            CONTENT_SETTING_DEFAULT);
+    if (has_children) {
+      entry->setting = CONTENT_SETTING_DEFAULT;
+      if (observer_)
+        observer_->OnItemsChanged(row, 1);
+      continue;
+    }
+    do {
+      entries_.erase(entries_.begin() + row);  // Note: |entry| is now garbage.
+      if (observer_)
+        observer_->OnItemsRemoved(row, 1);
+      // If we remove the last non-default child of a default parent, we
+      // should remove the parent too.  We do these removals one-at-a-time
+      // because the table view will end up being called back as each row is
+      // removed, in turn calling back to CanRemoveExceptions(), and if we've
+      // already removed more entries than the view has, we'll have problems.
+      if ((row == 0) || rows.count(row - 1))
+        break;
+      entry = &entries_[--row];
+    } while (!next_has_same_origin && (entry->origin == entry_origin) &&
+             (entry->origin == entry->embedding_origin) &&
+             (entry->setting == CONTENT_SETTING_DEFAULT));
+  }
+}
+
+void GeolocationExceptionsTableModel::RemoveAll() {
+  int old_row_count = RowCount();
+  entries_.clear();
+  map_->ResetToDefault();
+  if (observer_)
+    observer_->OnItemsRemoved(0, old_row_count);
+}
+
+int GeolocationExceptionsTableModel::RowCount() {
+  return entries_.size();
+}
+
+std::wstring GeolocationExceptionsTableModel::GetText(int row,
+                                                           int column_id) {
+  const Entry& entry = entries_[row];
+  if (column_id == IDS_EXCEPTIONS_HOSTNAME_HEADER) {
+    if (entry.origin == entry.embedding_origin) {
+      return UTF8ToWide(GeolocationContentSettingsMap::OriginToString(
+          entry.origin));
+    }
+    std::wstring indent(L"    ");
+    if (entry.embedding_origin.is_empty()) {
+      // NOTE: As long as the user cannot add/edit entries from the exceptions
+      // dialog, it's impossible to actually have a non-default setting for some
+      // origin "embedded on any other site", so this row will never appear.  If
+      // we add the ability to add/edit exceptions, we'll need to decide when to
+      // display this and how "removing" it will function.
+      return indent +
+          l10n_util::GetString(IDS_EXCEPTIONS_GEOLOCATION_EMBEDDED_ANY_OTHER);
+    }
+    return indent + l10n_util::GetStringF(
+        IDS_EXCEPTIONS_GEOLOCATION_EMBEDDED_ON_HOST,
+        UTF8ToWide(GeolocationContentSettingsMap::OriginToString(
+            entry.embedding_origin)));
+  }
+
+  if (column_id == IDS_EXCEPTIONS_ACTION_HEADER) {
+    switch (entry.setting) {
+      case CONTENT_SETTING_ALLOW:
+        return l10n_util::GetString(IDS_EXCEPTIONS_ALLOW_BUTTON);
+      case CONTENT_SETTING_BLOCK:
+        return l10n_util::GetString(IDS_EXCEPTIONS_BLOCK_BUTTON);
+      case CONTENT_SETTING_ASK:
+        return l10n_util::GetString(IDS_EXCEPTIONS_ASK_BUTTON);
+      case CONTENT_SETTING_DEFAULT:
+        return l10n_util::GetString(IDS_EXCEPTIONS_NOT_SET_BUTTON);
+      default:
+        break;
+    }
+  }
+
+  NOTREACHED();
+  return std::wstring();
+}
+
+void GeolocationExceptionsTableModel::SetObserver(
+    TableModelObserver* observer) {
+  observer_ = observer;
+}
+
+int GeolocationExceptionsTableModel::CompareValues(int row1,
+                                                        int row2,
+                                                        int column_id) {
+  DCHECK(row1 >= 0 && row1 < RowCount() &&
+         row2 >= 0 && row2 < RowCount());
+
+  const Entry& entry1 = entries_[row1];
+  const Entry& entry2 = entries_[row2];
+
+  // Sort top-level requesting origins, keeping all embedded (child) rules
+  // together.
+  int origin_comparison = CompareOrigins(entry1.origin, entry2.origin);
+  if (origin_comparison == 0) {
+    // The non-embedded rule comes before all embedded rules.
+    bool entry1_origins_same = entry1.origin == entry1.embedding_origin;
+    bool entry2_origins_same = entry2.origin == entry2.embedding_origin;
+    if (entry1_origins_same != entry2_origins_same)
+      return entry1_origins_same ? -1 : 1;
+
+    // The "default" embedded rule comes after all other embedded rules.
+    bool embedding_origin1_empty = entry1.embedding_origin.is_empty();
+    bool embedding_origin2_empty = entry2.embedding_origin.is_empty();
+    if (embedding_origin1_empty != embedding_origin2_empty)
+      return embedding_origin2_empty ? -1 : 1;
+
+    origin_comparison =
+        CompareOrigins(entry1.embedding_origin, entry2.embedding_origin);
+  } else if (column_id == IDS_EXCEPTIONS_ACTION_HEADER) {
+    // The rows are in different origins.  We need to find out how the top-level
+    // origins will compare.
+    while (entries_[row1].origin != entries_[row1].embedding_origin)
+      --row1;
+    while (entries_[row2].origin != entries_[row2].embedding_origin)
+      --row2;
+  }
+
+  // The entries are at the same "scope".  If we're sorting by action, then do
+  // that now.
+  if (column_id == IDS_EXCEPTIONS_ACTION_HEADER) {
+    int compare_text = l10n_util::CompareStringWithCollator(
+        GetCollator(), GetText(row1, column_id), GetText(row2, column_id));
+    if (compare_text != 0)
+      return compare_text;
+  }
+
+  // Sort by the relevant origin.
+  return origin_comparison;
+}
+
+void GeolocationExceptionsTableModel::AddEntriesForOrigin(
+    const GURL& origin,
+    const GeolocationContentSettingsMap::OneOriginSettings& settings) {
+  GeolocationContentSettingsMap::OneOriginSettings::const_iterator parent =
+      settings.find(origin);
+
+  // Add the "parent" entry for the non-embedded setting.
+  entries_.push_back(Entry(origin, origin,
+      (parent == settings.end()) ? CONTENT_SETTING_DEFAULT : parent->second));
+
+  // Add the "children" for any embedded settings.
+  GeolocationContentSettingsMap::OneOriginSettings::const_iterator i;
+  for (i = settings.begin(); i != settings.end(); ++i) {
+    // Skip the non-embedded setting which we already added above.
+    if (i == parent)
+      continue;
+
+    entries_.push_back(Entry(origin, i->first, i->second));
+  }
+}
+
+// static
+GeolocationExceptionsTableModel::Entry::Entry(
+    const GURL& in_origin, const GURL& in_embedding_origin,
+    ContentSetting in_setting)
+    : origin(in_origin),
+      embedding_origin(in_embedding_origin),
+      setting(in_setting) {
+}