Saudi Arabia has long offered direct and indirect financial support to the Palestinian cause, often giving money directly to HAMAS. The Saudi were also generous contributors to the martyr's funds that would support the families of Palestinian suicide bombers. Much the same can be said for others such as the UAE and Bahrain.
Egypt either supported the Palestinians directly or would at least turn a blind eye to their tunneling efforts at the Egyptian border despite the ongoing peace agreement with Israel. Under President Morsi in Egypt, the support for HAMAS became overt, vocal and aggressive.
Now, however, the tables have turned and the support for the Muslim Brotherhood has all but ceased locally. Egyptian President (General) Sisi has sworn publicly that he will destroy the Muslim Brotherhood and is he locked in a rather vicious battle with them in Egypt. Supporting HAMAS is off the agenda as President Sisi will not be seen to be supporting any organization that is part of the Muslim Brotherhood.
Saudi Arabia, a long time financial and political supporter of the Muslim Brotherhood has also done a turnaround. Starting in 2012, the Saudis began to withdraw support for the Muslim Brotherhood and by 2013, the cut off of funding and political support was nearly total. In 2014, Saudi Arabia has continued this campaign by pressuring other Arab governments to withdraw support - mostly notably a rather bare-knuckled diplomatic campaign against Qatar was partially successful in getting Qatari support for the Muslim Brotherhood curtailed. The UAE and Bahrain have joined with Saudi Arabia in declaring the Muslim Brotherhood to be a terrorist entity.
HAMAS has a problem. Lacking any real financial, social or diplomatic progress on the ground in the territories and abandoned by its former allies, it may view its only option as continuing the rocket attacks as a means of distracting attention away from itself. The Palestinian and Israeli people will continue to suffer, more lives will be lost, more destruction will occur and the future will become darker. Being Ikhwani (Muslim Brotherhood) is getting tougher.
SECTION TWO OF THE HAMAS CHARTER